3x+18=x-2

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



3x+18=x-2

We move all terms to the left:

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

We get rid of parentheses

3x-x+2+18=0

We add all the numbers together, and all the variables

2x+20=0

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

2x=-20

x=-20/2

x=-10

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