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-21.8q+4(1+5.8q)=2.8
We simplify the equation to the form, which is simple to understand
-21.8q+4(1+5.8q)=2.8
Reorder the terms in parentheses
-21.8q+(+4+23.2q)=2.8
Remove unnecessary parentheses
-21.8q+4+23.2q=+2.8
We move all terms containing q to the left and all other terms to the right.
-21.8q+23.2q=+2.8-4
We simplify left and right side of the equation.
+1.4q=-1.2
We divide both sides of the equation by 1.4 to get q.
q=-0.857142857143
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