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=3.1(0.78)Q
We move all terms to the left:
-(3.1(0.78)Q)=0
We calculate terms in parentheses: -(3.1(0.78)Q), so:We add all the numbers together, and all the variables
3.1(0.78)Q
We multiply parentheses
2.34Q
Back to the equation:
-(2.34Q)
-(+2.34Q)=0
We get rid of parentheses
-2.34Q=0
Q=0/-2.34
Q=0
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