(3x-5)+(7x+5)+(90)=180

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Solution for (3x-5)+(7x+5)+(90)=180 equation: 



(3x-5)+(7x+5)+(90)=180

We move all terms to the left:

(3x-5)+(7x+5)+(90)-(180)=0

We add all the numbers together, and all the variables

(3x-5)+(7x+5)-90=0

We get rid of parentheses

3x+7x-5+5-90=0

We add all the numbers together, and all the variables

10x-90=0

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

10x=90

x=90/10

x=9

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