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-6/3x=90
We move all terms to the left:
-6/3x-(90)=0
Domain of the equation: 3x!=0We multiply all the terms by the denominator
x!=0/3
x!=0
x∈R
-90*3x-6=0
Wy multiply elements
-270x-6=0
We move all terms containing x to the left, all other terms to the right
-270x=6
x=6/-270
x=-1/45
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