20+f=3f-20+2

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Solution for 20+f=3f-20+2 equation: 



20+f=3f-20+2

We move all terms to the left:

20+f-(3f-20+2)=0

We add all the numbers together, and all the variables

f-(3f-18)+20=0

We get rid of parentheses

f-3f+18+20=0

We add all the numbers together, and all the variables

-2f+38=0

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

-2f=-38

f=-38/-2

f=+19

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