-2x-6=3x-21

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Solution for -2x-6=3x-21 equation: 



-2x-6=3x-21

We move all terms to the left:

-2x-6-(3x-21)=0

We get rid of parentheses

-2x-3x+21-6=0

We add all the numbers together, and all the variables

-5x+15=0

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

-5x=-15

x=-15/-5

x=+3

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