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-q-13=2q+4
We simplify the equation to the form, which is simple to understand
-q-13=2q+4
We move all terms containing q to the left and all other terms to the right.
-1q-2q=+4+13
We simplify left and right side of the equation.
-3q=+17
We divide both sides of the equation by -3 to get q.
q=-5.66666666667
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