3f-13=7+2f

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Solution for 3f-13=7+2f equation: 



3f-13=7+2f

We move all terms to the left:

3f-13-(7+2f)=0

We add all the numbers together, and all the variables

3f-(2f+7)-13=0

We get rid of parentheses

3f-2f-7-13=0

We add all the numbers together, and all the variables

f-20=0

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

f=20

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