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-9=9/10x
We move all terms to the left:
-9-(9/10x)=0
Domain of the equation: 10x)!=0We add all the numbers together, and all the variables
x!=0/1
x!=0
x∈R
-(+9/10x)-9=0
We get rid of parentheses
-9/10x-9=0
We multiply all the terms by the denominator
-9*10x-9=0
Wy multiply elements
-90x-9=0
We move all terms containing x to the left, all other terms to the right
-90x=9
x=9/-90
x=-1/10
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