SOLUTION: Please help me solve the formula for the variable r: S=a/1-r

SOLUTION: Please help me solve the formula for the variable r: S=a/1-r

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Question 263514: Please help me solve the formula for the variable r: S=a/1-r
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Start with the given equation.

Multiply both sides by .

Distribute

Subtract S from both sides.

Multiply both sides by -1.

Rearrange the terms.

Divide both sides by S to isolate r.
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