2x+18=x-3

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



2x+18=x-3

We move all terms to the left:

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

We get rid of parentheses

2x-x+3+18=0

We add all the numbers together, and all the variables

x+21=0

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

x=-21

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