7(3c-4)=56

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Solution for 7(3c-4)=56 equation: 



7(3c-4)=56

We move all terms to the left:

7(3c-4)-(56)=0

We multiply parentheses

21c-28-56=0

We add all the numbers together, and all the variables

21c-84=0

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

21c=84

c=84/21

c=4

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