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-.3q-7=-3
We simplify the equation to the form, which is simple to understand
-.3q-7=-3
We move all terms containing q to the left and all other terms to the right.
-0.3q=-3+7
We simplify left and right side of the equation.
-0.3q=+4
We divide both sides of the equation by -0.3 to get q.
q=-13.3333333333
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