3+x+8-9=9

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Solution for 3+x+8-9=9 equation: 



3+x+8-9=9

We move all terms to the left:

3+x+8-9-(9)=0

We add all the numbers together, and all the variables

x-7=0

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

x=7

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