-3(-x+4)=9

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Solution for -3(-x+4)=9 equation:



-3(-x+4)=9
We move all terms to the left:
-3(-x+4)-(9)=0
We add all the numbers together, and all the variables
-3(-1x+4)-9=0
We multiply parentheses
3x-12-9=0
We add all the numbers together, and all the variables
3x-21=0
We move all terms containing x to the left, all other terms to the right
3x=21
x=21/3
x=7

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