X=(90-x)+36

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Solution for X=(90-x)+36 equation: 



X=(90-X)+36

We move all terms to the left:

X-((90-X)+36)=0

We add all the numbers together, and all the variables

X-((-1X+90)+36)=0



We calculate terms in parentheses: -((-1X+90)+36), so:

(-1X+90)+36

We get rid of parentheses

-1X+90+36

We add all the numbers together, and all the variables

-1X+126

Back to the equation:

-(-1X+126)



We get rid of parentheses

X+1X-126=0

We add all the numbers together, and all the variables

2X-126=0

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

2X=126

X=126/2

X=63

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