90=x+(8x)

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Solution for 90=x+(8x) equation:



90=x+(8x)
We move all terms to the left:
90-(x+(8x))=0
We add all the numbers together, and all the variables
-(+9x)+90=0
We get rid of parentheses
-9x+90=0
We move all terms containing x to the left, all other terms to the right
-9x=-90
x=-90/-9
x=+10

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