X=-3y-18

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Solution for X=-3y-18 equation: 



X=-3X-18

We move all terms to the left:

X-(-3X-18)=0

We get rid of parentheses

X+3X+18=0

We add all the numbers together, and all the variables

4X+18=0

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

4X=-18

X=-18/4

X=-4+1/2

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