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.15q+.5*87=1.5q+43.5
We simplify the equation to the form, which is simple to understand
.15q+.5*87=1.5q+43.5
We move all terms containing q to the left and all other terms to the right.
+ 0.15q-1.5q=+43.5-43.5
We simplify left and right side of the equation.
-1.35q=0
We divide both sides of the equation by -1.35 to get q.
q=-0
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