-3=7+-f/2

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



-3=7+-f/2

We move all terms to the left:

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

We add all the numbers together, and all the variables

-(-f/2)-3=0

We get rid of parentheses

f/2-3=0

We multiply all the terms by the denominator


f-3*2=0

We add all the numbers together, and all the variables

f-6=0

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

f=6

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