X+y=23X-y=17

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Solution for X+y=23X-y=17 equation: 



X+X=23X-X=17

We move all terms to the left:

X+X-(23X-X)=0

We add all the numbers together, and all the variables

X+X-(+22X)=0

We add all the numbers together, and all the variables

2X-(+22X)=0

We get rid of parentheses

2X-22X=0

We add all the numbers together, and all the variables

-20X=0

X=0/-20

X=0

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