(7b)/(4)=21

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Solution for (7b)/(4)=21 equation: 



(7b)/(4)=21

We move all terms to the left:

(7b)/(4)-(21)=0

We multiply all the terms by the denominator


7b-21*4=0

We add all the numbers together, and all the variables

7b-84=0

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

7b=84

b=84/7

b=12

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