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

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



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

We move all terms to the left:

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

We multiply parentheses

9x-(3(x+7)-x)-45=0



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

3(x+7)-x

We add all the numbers together, and all the variables

-1x+3(x+7)

We multiply parentheses

-1x+3x+21

We add all the numbers together, and all the variables

2x+21

Back to the equation:

-(2x+21)



We get rid of parentheses

9x-2x-21-45=0

We add all the numbers together, and all the variables

7x-66=0

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

7x=66

x=66/7

x=9+3/7

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