x+7=3(x-3)

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



x+7=3(x-3)

We move all terms to the left:

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



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

3(x-3)

We multiply parentheses

3x-9

Back to the equation:

-(3x-9)



We get rid of parentheses

x-3x+9+7=0

We add all the numbers together, and all the variables

-2x+16=0

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

-2x=-16

x=-16/-2

x=+8

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