x=-12+9

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Solution for x=-12+9 equation: 



x=-12+9

We move all terms to the left:

x-(-12+9)=0

We add all the numbers together, and all the variables

x-(-3)=0

We add all the numbers together, and all the variables

x+3=0

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

x=-3

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