4f=5f+7

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Solution for 4f=5f+7 equation: 



4f=5f+7

We move all terms to the left:

4f-(5f+7)=0

We get rid of parentheses

4f-5f-7=0

We add all the numbers together, and all the variables

-1f-7=0

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

-f=7

f=7/-1

f=-7

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