-4x+6=-x-21

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Solution for -4x+6=-x-21 equation: 



-4x+6=-x-21

We move all terms to the left:

-4x+6-(-x-21)=0

We add all the numbers together, and all the variables

-4x-(-1x-21)+6=0

We get rid of parentheses

-4x+1x+21+6=0

We add all the numbers together, and all the variables

-3x+27=0

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

-3x=-27

x=-27/-3

x=+9

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