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=2/5Q-4
We move all terms to the left:
-(2/5Q-4)=0
Domain of the equation: 5Q-4)!=0We get rid of parentheses
Q∈R
-2/5Q+4=0
We multiply all the terms by the denominator
4*5Q-2=0
Wy multiply elements
20Q-2=0
We move all terms containing Q to the left, all other terms to the right
20Q=2
Q=2/20
Q=1/10
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