3x-21-2x+6=-18

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Solution for 3x-21-2x+6=-18 equation: 



3x-21-2x+6=-18

We move all terms to the left:

3x-21-2x+6-(-18)=0

We add all the numbers together, and all the variables

x+3=0

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

x=-3

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