Finite Math Examples

Solve by Substitution 3(x-y)=5(x+3)-13 , 2(2x-3y-10)=5(y+2)
,
Step 1
Solve for in .
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Step 1.1
Divide each term in by and simplify.
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Step 1.1.1
Divide each term in by .
Step 1.1.2
Simplify the left side.
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Step 1.1.2.1
Cancel the common factor of .
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Step 1.1.2.1.1
Cancel the common factor.
Step 1.1.2.1.2
Divide by .
Step 1.1.3
Simplify the right side.
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Step 1.1.3.1
Combine the numerators over the common denominator.
Step 1.1.3.2
Simplify each term.
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Step 1.1.3.2.1
Apply the distributive property.
Step 1.1.3.2.2
Multiply by .
Step 1.1.3.3
Subtract from .
Step 1.2
Move all terms not containing to the right side of the equation.
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Step 1.2.1
Subtract from both sides of the equation.
Step 1.2.2
Split the fraction into two fractions.
Step 1.3
Divide each term in by and simplify.
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Step 1.3.1
Divide each term in by .
Step 1.3.2
Simplify the left side.
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Step 1.3.2.1
Dividing two negative values results in a positive value.
Step 1.3.2.2
Divide by .
Step 1.3.3
Simplify the right side.
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Step 1.3.3.1
Combine the numerators over the common denominator.
Step 1.3.3.2
To write as a fraction with a common denominator, multiply by .
Step 1.3.3.3
Combine and .
Step 1.3.3.4
Combine the numerators over the common denominator.
Step 1.3.3.5
Combine the numerators over the common denominator.
Step 1.3.3.6
Multiply by .
Step 1.3.3.7
Subtract from .
Step 1.3.3.8
Factor out of .
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Step 1.3.3.8.1
Factor out of .
Step 1.3.3.8.2
Factor out of .
Step 1.3.3.8.3
Factor out of .
Step 1.3.3.9
Simplify the expression.
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Step 1.3.3.9.1
Move the negative one from the denominator of .
Step 1.3.3.9.2
Rewrite as .
Step 2
Replace all occurrences of with in each equation.
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Step 2.1
Replace all occurrences of in with .
Step 2.2
Simplify .
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Step 2.2.1
Simplify the left side.
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Step 2.2.1.1
Simplify .
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Step 2.2.1.1.1
Simplify each term.
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Step 2.2.1.1.1.1
Cancel the common factor of .
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Step 2.2.1.1.1.1.1
Move the leading negative in into the numerator.
Step 2.2.1.1.1.1.2
Factor out of .
Step 2.2.1.1.1.1.3
Cancel the common factor.
Step 2.2.1.1.1.1.4
Rewrite the expression.
Step 2.2.1.1.1.2
Multiply by .
Step 2.2.1.1.1.3
Apply the distributive property.
Step 2.2.1.1.1.4
Multiply by .
Step 2.2.1.1.2
Simplify terms.
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Step 2.2.1.1.2.1
Add and .
Step 2.2.1.1.2.2
Subtract from .
Step 2.2.1.1.2.3
Apply the distributive property.
Step 2.2.1.1.2.4
Multiply.
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Step 2.2.1.1.2.4.1
Multiply by .
Step 2.2.1.1.2.4.2
Multiply by .
Step 2.2.2
Simplify the right side.
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Step 2.2.2.1
Simplify .
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Step 2.2.2.1.1
To write as a fraction with a common denominator, multiply by .
Step 2.2.2.1.2
Simplify terms.
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Step 2.2.2.1.2.1
Combine and .
Step 2.2.2.1.2.2
Combine the numerators over the common denominator.
Step 2.2.2.1.3
Simplify the numerator.
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Step 2.2.2.1.3.1
Factor out of .
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Step 2.2.2.1.3.1.1
Factor out of .
Step 2.2.2.1.3.1.2
Factor out of .
Step 2.2.2.1.3.1.3
Factor out of .
Step 2.2.2.1.3.2
Apply the distributive property.
Step 2.2.2.1.3.3
Multiply by .
Step 2.2.2.1.3.4
Add and .
Step 2.2.2.1.4
Multiply .
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Step 2.2.2.1.4.1
Combine and .
Step 2.2.2.1.4.2
Multiply by .
Step 2.2.2.1.5
Factor out of .
Step 2.2.2.1.6
Rewrite as .
Step 2.2.2.1.7
Factor out of .
Step 2.2.2.1.8
Simplify the expression.
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Step 2.2.2.1.8.1
Rewrite as .
Step 2.2.2.1.8.2
Move the negative in front of the fraction.
Step 3
Solve for in .
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Step 3.1
Multiply both sides by .
Step 3.2
Simplify.
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Step 3.2.1
Simplify the left side.
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Step 3.2.1.1
Simplify .
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Step 3.2.1.1.1
Apply the distributive property.
Step 3.2.1.1.2
Multiply.
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Step 3.2.1.1.2.1
Multiply by .
Step 3.2.1.1.2.2
Multiply by .
Step 3.2.2
Simplify the right side.
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Step 3.2.2.1
Simplify .
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Step 3.2.2.1.1
Cancel the common factor of .
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Step 3.2.2.1.1.1
Move the leading negative in into the numerator.
Step 3.2.2.1.1.2
Cancel the common factor.
Step 3.2.2.1.1.3
Rewrite the expression.
Step 3.2.2.1.2
Apply the distributive property.
Step 3.2.2.1.3
Multiply by .
Step 3.3
Solve for .
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Step 3.3.1
Move all terms containing to the left side of the equation.
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Step 3.3.1.1
Add to both sides of the equation.
Step 3.3.1.2
Add and .
Step 3.3.2
Move all terms not containing to the right side of the equation.
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Step 3.3.2.1
Add to both sides of the equation.
Step 3.3.2.2
Add and .
Step 3.3.3
Divide each term in by and simplify.
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Step 3.3.3.1
Divide each term in by .
Step 3.3.3.2
Simplify the left side.
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Step 3.3.3.2.1
Cancel the common factor of .
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Step 3.3.3.2.1.1
Cancel the common factor.
Step 3.3.3.2.1.2
Divide by .
Step 3.3.3.3
Simplify the right side.
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Step 3.3.3.3.1
Divide by .
Step 4
Replace all occurrences of with in each equation.
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Step 4.1
Replace all occurrences of in with .
Step 4.2
Simplify the right side.
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Step 4.2.1
Simplify .
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Step 4.2.1.1
Add and .
Step 4.2.1.2
Multiply by .
Step 4.2.1.3
Divide by .
Step 4.2.1.4
Multiply by .
Step 5
The solution to the system is the complete set of ordered pairs that are valid solutions.
Step 6
The result can be shown in multiple forms.
Point Form:
Equation Form:
Step 7