180=3x+(x+20)

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Solution for 180=3x+(x+20) equation: 



180=3x+(x+20)

We move all terms to the left:

180-(3x+(x+20))=0



We calculate terms in parentheses: -(3x+(x+20)), so:

3x+(x+20)

We get rid of parentheses

3x+x+20

We add all the numbers together, and all the variables

4x+20

Back to the equation:

-(4x+20)



We get rid of parentheses

-4x-20+180=0

We add all the numbers together, and all the variables

-4x+160=0

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

-4x=-160

x=-160/-4

x=+40

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