-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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