3(7-x)=-12

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



3(7-x)=-12

We move all terms to the left:

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

We add all the numbers together, and all the variables

3(-1x+7)-(-12)=0

We add all the numbers together, and all the variables

3(-1x+7)+12=0

We multiply parentheses

-3x+21+12=0

We add all the numbers together, and all the variables

-3x+33=0

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

-3x=-33

x=-33/-3

x=+11

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