3f-4=-15f+20f-20

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Solution for 3f-4=-15f+20f-20 equation: 



3f-4=-15f+20f-20

We move all terms to the left:

3f-4-(-15f+20f-20)=0

We add all the numbers together, and all the variables

3f-(5f-20)-4=0

We get rid of parentheses

3f-5f+20-4=0

We add all the numbers together, and all the variables

-2f+16=0

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

-2f=-16

f=-16/-2

f=+8

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