15-3x-12=3-3x-4x-4

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Solution for 15-3x-12=3-3x-4x-4 equation: 



15-3x-12=3-3x-4x-4

We move all terms to the left:

15-3x-12-(3-3x-4x-4)=0

We add all the numbers together, and all the variables

-3x-(-7x-1)+15-12=0

We add all the numbers together, and all the variables

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

We get rid of parentheses

-3x+7x+1+3=0

We add all the numbers together, and all the variables

4x+4=0

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

4x=-4

x=-4/4

x=-1

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