21+1.5f=28+2f

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Solution for 21+1.5f=28+2f equation: 



21+1.5f=28+2f

We move all terms to the left:

21+1.5f-(28+2f)=0

We add all the numbers together, and all the variables

1.5f-(2f+28)+21=0

We get rid of parentheses

1.5f-2f-28+21=0

We add all the numbers together, and all the variables

-0.5f-7=0

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

-0.5f=7

f=7/-0.5

f=-14

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