-4x-12=-3x-9

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Solution for -4x-12=-3x-9 equation: 



-4x-12=-3x-9

We move all terms to the left:

-4x-12-(-3x-9)=0

We get rid of parentheses

-4x+3x+9-12=0

We add all the numbers together, and all the variables

-1x-3=0

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

-x=3

x=3/-1

x=-3

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