(X+5)+(x-4)=90

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Solution for (X+5)+(x-4)=90 equation: 



(X+5)+(X-4)=90

We move all terms to the left:

(X+5)+(X-4)-(90)=0

We get rid of parentheses

X+X+5-4-90=0

We add all the numbers together, and all the variables

2X-89=0

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

2X=89

X=89/2

X=44+1/2

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