9x-(7x+3)=9x-31

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Solution for 9x-(7x+3)=9x-31 equation: 



9x-(7x+3)=9x-31

We move all terms to the left:

9x-(7x+3)-(9x-31)=0

We get rid of parentheses

9x-7x-9x-3+31=0

We add all the numbers together, and all the variables

-7x+28=0

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

-7x=-28

x=-28/-7

x=+4

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