4(3x-7)=21

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Solution for 4(3x-7)=21 equation: 



4(3x-7)=21

We move all terms to the left:

4(3x-7)-(21)=0

We multiply parentheses

12x-28-21=0

We add all the numbers together, and all the variables

12x-49=0

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

12x=49

x=49/12

x=4+1/12

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