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180-(2x-20+30)=180-(2x-20+30)
We move all terms to the left:
180-(2x-20+30)-(180-(2x-20+30))=0
We add all the numbers together, and all the variables
-(2x+10)-(180-(2x+10))+180=0
We get rid of parentheses
-2x-(180-(2x+10))-10+180=0
We calculate terms in parentheses: -(180-(2x+10)), so:We add all the numbers together, and all the variables
180-(2x+10)
determiningTheFunctionDomain -(2x+10)+180
We get rid of parentheses
-2x-10+180
We add all the numbers together, and all the variables
-2x+170
Back to the equation:
-(-2x+170)
-2x-(-2x+170)+170=0
We get rid of parentheses
-2x+2x-170+170=0
We add all the numbers together, and all the variables
=0
x=0/1
x=0
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