3(3x+7)=3x-15

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Solution for 3(3x+7)=3x-15 equation: 



3(3x+7)=3x-15

We move all terms to the left:

3(3x+7)-(3x-15)=0

We multiply parentheses

9x-(3x-15)+21=0

We get rid of parentheses

9x-3x+15+21=0

We add all the numbers together, and all the variables

6x+36=0

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

6x=-36

x=-36/6

x=-6

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