-3x-3=-7x-15

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Solution for -3x-3=-7x-15 equation: 



-3x-3=-7x-15

We move all terms to the left:

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

We get rid of parentheses

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

We add all the numbers together, and all the variables

4x+12=0

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

4x=-12

x=-12/4

x=-3

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