3x+15=-3x-18

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Solution for 3x+15=-3x-18 equation: 



3x+15=-3x-18

We move all terms to the left:

3x+15-(-3x-18)=0

We get rid of parentheses

3x+3x+18+15=0

We add all the numbers together, and all the variables

6x+33=0

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

6x=-33

x=-33/6

x=-5+1/2

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