3x+6=-x-18

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



3x+6=-x-18

We move all terms to the left:

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

We add all the numbers together, and all the variables

3x-(-1x-18)+6=0

We get rid of parentheses

3x+1x+18+6=0

We add all the numbers together, and all the variables

4x+24=0

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

4x=-24

x=-24/4

x=-6

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