x-3=-2x-15

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



x-3=-2x-15

We move all terms to the left:

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

We get rid of parentheses

x+2x+15-3=0

We add all the numbers together, and all the variables

3x+12=0

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

3x=-12

x=-12/3

x=-4

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