-12+9=-43+x

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Solution for -12+9=-43+x equation: 



-12+9=-43+x

We move all terms to the left:

-12+9-(-43+x)=0

We add all the numbers together, and all the variables

-(x-43)-12+9=0

We add all the numbers together, and all the variables

-(x-43)-3=0

We get rid of parentheses

-x+43-3=0

We add all the numbers together, and all the variables

-1x+40=0

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

-x=-40

x=-40/-1

x=+40

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