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

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



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We add all the numbers together, and all the variables

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

We multiply parentheses

-1x+3x-(-(3x+7)+7x)+9=0



We calculate terms in parentheses: -(-(3x+7)+7x), so:

-(3x+7)+7x

We add all the numbers together, and all the variables

7x-(3x+7)

We get rid of parentheses

7x-3x-7

We add all the numbers together, and all the variables

4x-7

Back to the equation:

-(4x-7)



We add all the numbers together, and all the variables

2x-(4x-7)+9=0

We get rid of parentheses

2x-4x+7+9=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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