3f+5=-2f-15

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Solution for 3f+5=-2f-15 equation: 



3f+5=-2f-15

We move all terms to the left:

3f+5-(-2f-15)=0

We get rid of parentheses

3f+2f+15+5=0

We add all the numbers together, and all the variables

5f+20=0

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

5f=-20

f=-20/5

f=-4

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