9x-18=90-9x

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Solution for 9x-18=90-9x equation:



9x-18=90-9x
We move all terms to the left:
9x-18-(90-9x)=0
We add all the numbers together, and all the variables
9x-(-9x+90)-18=0
We get rid of parentheses
9x+9x-90-18=0
We add all the numbers together, and all the variables
18x-108=0
We move all terms containing x to the left, all other terms to the right
18x=108
x=108/18
x=6

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