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13/10x=9
We move all terms to the left:
13/10x-(9)=0
Domain of the equation: 10x!=0We multiply all the terms by the denominator
x!=0/10
x!=0
x∈R
-9*10x+13=0
Wy multiply elements
-90x+13=0
We move all terms containing x to the left, all other terms to the right
-90x=-13
x=-13/-90
x=13/90
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