7+28f=35+21f

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Solution for 7+28f=35+21f equation: 



7+28f=35+21f

We move all terms to the left:

7+28f-(35+21f)=0

We add all the numbers together, and all the variables

28f-(21f+35)+7=0

We get rid of parentheses

28f-21f-35+7=0

We add all the numbers together, and all the variables

7f-28=0

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

7f=28

f=28/7

f=4

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