Finite Math Examples

Solve for x cA-1=1/c*A-1
Step 1
Combine and .
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
Combine the opposite terms in .
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Step 2.2.1
Add and .
Step 2.2.2
Add and .
Step 3
Find the LCD of the terms in the equation.
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Step 3.1
Finding the LCD of a list of values is the same as finding the LCM of the denominators of those values.
Step 3.2
The LCM of one and any expression is the expression.
Step 4
Multiply each term in by to eliminate the fractions.
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Step 4.1
Multiply each term in by .
Step 4.2
Simplify the left side.
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Step 4.2.1
Multiply by by adding the exponents.
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Step 4.2.1.1
Move .
Step 4.2.1.2
Multiply by .
Step 4.3
Simplify the right side.
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Step 4.3.1
Cancel the common factor of .
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Step 4.3.1.1
Cancel the common factor.
Step 4.3.1.2
Rewrite the expression.
Step 5
Solve the equation.
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Step 5.1
Divide each term in by and simplify.
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Step 5.1.1
Divide each term in by .
Step 5.1.2
Simplify the left side.
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Step 5.1.2.1
Cancel the common factor of .
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Step 5.1.2.1.1
Cancel the common factor.
Step 5.1.2.1.2
Divide by .
Step 5.1.3
Simplify the right side.
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Step 5.1.3.1
Cancel the common factor of .
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Step 5.1.3.1.1
Cancel the common factor.
Step 5.1.3.1.2
Rewrite the expression.
Step 5.2
Take the specified root of both sides of the equation to eliminate the exponent on the left side.
Step 5.3
Any root of is .
Step 5.4
The complete solution is the result of both the positive and negative portions of the solution.
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Step 5.4.1
First, use the positive value of the to find the first solution.
Step 5.4.2
Next, use the negative value of the to find the second solution.
Step 5.4.3
The complete solution is the result of both the positive and negative portions of the solution.