3+(-2f)=-7

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Solution for 3+(-2f)=-7 equation: 



3+(-2f)=-7

We move all terms to the left:

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

We add all the numbers together, and all the variables

(-2f)+10=0

We get rid of parentheses

-2f+10=0

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

-2f=-10

f=-10/-2

f=+5

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