180-x=3(80-x)

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Solution for 180-x=3(80-x) equation: 



180-x=3(80-x)

We move all terms to the left:

180-x-(3(80-x))=0

We add all the numbers together, and all the variables

-x-(3(-1x+80))+180=0

We add all the numbers together, and all the variables

-1x-(3(-1x+80))+180=0



We calculate terms in parentheses: -(3(-1x+80)), so:

3(-1x+80)

We multiply parentheses

-3x+240

Back to the equation:

-(-3x+240)



We get rid of parentheses

-1x+3x-240+180=0

We add all the numbers together, and all the variables

2x-60=0

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

2x=60

x=60/2

x=30

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