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180-x=1/2(30+2x-30)
We move all terms to the left:
180-x-(1/2(30+2x-30))=0
Domain of the equation: 2(30+2x-30))!=0We add all the numbers together, and all the variables
x∈R
-x-(1/2(+2x))+180=0
We add all the numbers together, and all the variables
-1x-(1/2(+2x))+180=0
We multiply all the terms by the denominator
-1x*2(+2x))-(1+180*2(+2x))=0
Wy multiply elements
-2x^2(++360x(+=0
We use the square of the difference formula
-2x^2(+360x(+=0
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