3(f+7)=15

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Solution for 3(f+7)=15 equation: 



3(f+7)=15

We move all terms to the left:

3(f+7)-(15)=0

We multiply parentheses

3f+21-15=0

We add all the numbers together, and all the variables

3f+6=0

We move all terms containing f to the left, all other terms to the right

3f=-6

f=-6/3

f=-2

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