3(f-65)+21=81

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Solution for 3(f-65)+21=81 equation: 



3(f-65)+21=81

We move all terms to the left:

3(f-65)+21-(81)=0

We add all the numbers together, and all the variables

3(f-65)-60=0

We multiply parentheses

3f-195-60=0

We add all the numbers together, and all the variables

3f-255=0

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

3f=255

f=255/3

f=85

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