-3(x+7)=12-3x+9

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Solution for -3(x+7)=12-3x+9 equation: 



-3(x+7)=12-3x+9

We move all terms to the left:

-3(x+7)-(12-3x+9)=0

We add all the numbers together, and all the variables

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

We multiply parentheses

-3x-(-3x+21)-21=0

We get rid of parentheses

-3x+3x-21-21=0

We add all the numbers together, and all the variables

-42!=0

There is no solution for this equation

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