3(x+1)+6x=-15

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Solution for 3(x+1)+6x=-15 equation: 



3(x+1)+6x=-15

We move all terms to the left:

3(x+1)+6x-(-15)=0

We add all the numbers together, and all the variables

6x+3(x+1)+15=0

We multiply parentheses

6x+3x+3+15=0

We add all the numbers together, and all the variables

9x+18=0

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

9x=-18

x=-18/9

x=-2

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