-7(4-2x)=21

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Solution for -7(4-2x)=21 equation: 



-7(4-2x)=21

We move all terms to the left:

-7(4-2x)-(21)=0

We add all the numbers together, and all the variables

-7(-2x+4)-21=0

We multiply parentheses

14x-28-21=0

We add all the numbers together, and all the variables

14x-49=0

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

14x=49

x=49/14

x=3+1/2

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