2f+7=-1

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Solution for 2f+7=-1 equation: 



2f+7=-1

We move all terms to the left:

2f+7-(-1)=0

We add all the numbers together, and all the variables

2f+8=0

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

2f=-8

f=-8/2

f=-4

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