5x+15=-2x-6

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Solution for 5x+15=-2x-6 equation: 



5x+15=-2x-6

We move all terms to the left:

5x+15-(-2x-6)=0

We get rid of parentheses

5x+2x+6+15=0

We add all the numbers together, and all the variables

7x+21=0

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

7x=-21

x=-21/7

x=-3

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