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

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



x=180-3x-(x+20)
We move all terms to the left:
x-(180-3x-(x+20))=0
We calculate terms in parentheses: -(180-3x-(x+20)), so:
180-3x-(x+20)
determiningTheFunctionDomain -3x-(x+20)+180
We get rid of parentheses
-3x-x-20+180
We add all the numbers together, and all the variables
-4x+160
Back to the equation:
-(-4x+160)
We get rid of parentheses
x+4x-160=0
We add all the numbers together, and all the variables
5x-160=0
We move all terms containing x to the left, all other terms to the right
5x=160
x=160/5
x=32

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