f/7+81=90

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Solution for f/7+81=90 equation: 



f/7+81=90

We move all terms to the left:

f/7+81-(90)=0

We add all the numbers together, and all the variables

f/7-9=0

We multiply all the terms by the denominator


f-9*7=0

We add all the numbers together, and all the variables

f-63=0

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

f=63

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