3(x+7)=-3(5x-5)+9x

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Solution for 3(x+7)=-3(5x-5)+9x equation: 



3(x+7)=-3(5x-5)+9x

We move all terms to the left:

3(x+7)-(-3(5x-5)+9x)=0

We multiply parentheses

3x-(-3(5x-5)+9x)+21=0



We calculate terms in parentheses: -(-3(5x-5)+9x), so:

-3(5x-5)+9x

We add all the numbers together, and all the variables

9x-3(5x-5)

We multiply parentheses

9x-15x+15

We add all the numbers together, and all the variables

-6x+15

Back to the equation:

-(-6x+15)



We get rid of parentheses

3x+6x-15+21=0

We add all the numbers together, and all the variables

9x+6=0

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

9x=-6

x=-6/9

x=-2/3

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