X-3=+9-x

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Solution for X-3=+9-x equation: 



X-3=+9-X

We move all terms to the left:

X-3-(+9-X)=0

We add all the numbers together, and all the variables

X-(-1X+9)-3=0

We get rid of parentheses

X+1X-9-3=0

We add all the numbers together, and all the variables

2X-12=0

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

2X=12

X=12/2

X=6

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