3(x+7)=-3(x-1)

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Solution for 3(x+7)=-3(x-1) equation: 



3(x+7)=-3(x-1)

We move all terms to the left:

3(x+7)-(-3(x-1))=0

We multiply parentheses

3x-(-3(x-1))+21=0



We calculate terms in parentheses: -(-3(x-1)), so:

-3(x-1)

We multiply parentheses

-3x+3

Back to the equation:

-(-3x+3)



We get rid of parentheses

3x+3x-3+21=0

We add all the numbers together, and all the variables

6x+18=0

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

6x=-18

x=-18/6

x=-3

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