x-8+y=9

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Solution for x-8+y=9 equation: 



X-8+X=9

We move all terms to the left:

X-8+X-(9)=0

We add all the numbers together, and all the variables

2X-17=0

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

2X=17

X=17/2

X=8+1/2

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