3x+3=-7x-7

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



3x+3=-7x-7

We move all terms to the left:

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

We get rid of parentheses

3x+7x+7+3=0

We add all the numbers together, and all the variables

10x+10=0

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

10x=-10

x=-10/10

x=-1

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