x=-4,x=12

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Solution for x=-4,x=12 equation: 



x=-4.x=12

We move all terms to the left:

x-(-4.x)=0

We add all the numbers together, and all the variables

x-(-4x)=0

We get rid of parentheses

x+4x=0

We add all the numbers together, and all the variables

5x=0

x=0/5

x=0

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