71/2=3f-21

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Solution for 71/2=3f-21 equation: 



71/2=3f-21

We move all terms to the left:

71/2-(3f-21)=0

We get rid of parentheses

-3f+21+71/2=0

We multiply all the terms by the denominator


-3f*2+71+21*2=0

We add all the numbers together, and all the variables

-3f*2+113=0

Wy multiply elements

-6f+113=0

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

-6f=-113

f=-113/-6

f=18+5/6

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