1/2(180-x)=2(90-x)-21

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Solution for 1/2(180-x)=2(90-x)-21 equation: 



1/2(180-x)=2(90-x)-21

We move all terms to the left:

1/2(180-x)-(2(90-x)-21)=0



Domain of the equation: 2(180-x)!=0

x∈R



We add all the numbers together, and all the variables

1/2(-1x+180)-(2(-1x+90)-21)=0

We multiply all the terms by the denominator


-((2(-1x+90)-21))*2(-1x+180)+1=0



We calculate terms in parentheses: -((2(-1x+90)-21))*2(-1x+180), so:

(2(-1x+90)-21))*2(-1x+180

We add all the numbers together, and all the variables

-1x+(2(-1x+90)-21))*2(+180

Back to the equation:

-(-1x+(2(-1x+90)-21))*2(+180)



We add all the numbers together, and all the variables

-(-1x+(2(-1x+90)-21))*2180+1=0

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

-(-1x+(2(-1x+90)-21))*2180=-1

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