Finite Math Examples

Solve by Substitution x=y-3 , 2x-y=7
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Step 1
Replace all occurrences of with in each equation.
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Step 1.1
Replace all occurrences of in with .
Step 1.2
Simplify the left side.
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Step 1.2.1
Simplify .
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Step 1.2.1.1
Simplify each term.
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Step 1.2.1.1.1
Apply the distributive property.
Step 1.2.1.1.2
Multiply by .
Step 1.2.1.2
Subtract from .
Step 2
Move all terms not containing to the right side of the equation.
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Step 2.1
Add to both sides of the equation.
Step 2.2
Add and .
Step 3
Replace all occurrences of with in each equation.
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Step 3.1
Replace all occurrences of in with .
Step 3.2
Simplify the right side.
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Step 3.2.1
Subtract from .
Step 4
The solution to the system is the complete set of ordered pairs that are valid solutions.
Step 5
The result can be shown in multiple forms.
Point Form:
Equation Form:
Step 6