3f-10=5f+20

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Solution for 3f-10=5f+20 equation: 



3f-10=5f+20

We move all terms to the left:

3f-10-(5f+20)=0

We get rid of parentheses

3f-5f-20-10=0

We add all the numbers together, and all the variables

-2f-30=0

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

-2f=30

f=30/-2

f=-15

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