6f+8(21.5-f)=142

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Solution for 6f+8(21.5-f)=142 equation: 



6f+8(21.5-f)=142

We move all terms to the left:

6f+8(21.5-f)-(142)=0

We add all the numbers together, and all the variables

6f+8(-1f+21.5)-142=0

We multiply parentheses

6f-8f+172-142=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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