2f+3=-15

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Solution for 2f+3=-15 equation: 



2f+3=-15

We move all terms to the left:

2f+3-(-15)=0

We add all the numbers together, and all the variables

2f+18=0

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

2f=-18

f=-18/2

f=-9

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