(X-2)+x=90

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Solution for (X-2)+x=90 equation: 



(X-2)+X=90

We move all terms to the left:

(X-2)+X-(90)=0

We add all the numbers together, and all the variables

X+(X-2)-90=0

We get rid of parentheses

X+X-2-90=0

We add all the numbers together, and all the variables

2X-92=0

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

2X=92

X=92/2

X=46

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