12=-4x-5+2x-1

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Solution for 12=-4x-5+2x-1 equation: 



12=-4x-5+2x-1

We move all terms to the left:

12-(-4x-5+2x-1)=0

We add all the numbers together, and all the variables

-(-2x-6)+12=0

We get rid of parentheses

2x+6+12=0

We add all the numbers together, and all the variables

2x+18=0

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

2x=-18

x=-18/2

x=-9

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