3+2x=x-15

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Solution for 3+2x=x-15 equation: 



3+2x=x-15

We move all terms to the left:

3+2x-(x-15)=0

We get rid of parentheses

2x-x+15+3=0

We add all the numbers together, and all the variables

x+18=0

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

x=-18

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