(9x+80)=(7x+120)

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Solution for (9x+80)=(7x+120) equation: 



(9x+80)=(7x+120)

We move all terms to the left:

(9x+80)-((7x+120))=0

We get rid of parentheses

9x-((7x+120))+80=0



We calculate terms in parentheses: -((7x+120)), so:

(7x+120)

We get rid of parentheses

7x+120

Back to the equation:

-(7x+120)



We get rid of parentheses

9x-7x-120+80=0

We add all the numbers together, and all the variables

2x-40=0

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

2x=40

x=40/2

x=20

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