9=5(x+3)-7x

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



9=5(x+3)-7x

We move all terms to the left:

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



We calculate terms in parentheses: -(5(x+3)-7x), so:

5(x+3)-7x

We add all the numbers together, and all the variables

-7x+5(x+3)

We multiply parentheses

-7x+5x+15

We add all the numbers together, and all the variables

-2x+15

Back to the equation:

-(-2x+15)



We get rid of parentheses

2x-15+9=0

We add all the numbers together, and all the variables

2x-6=0

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

2x=6

x=6/2

x=3

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