Solve for q
q=-\frac{1}{3}\approx -0.333333333
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3q=-1
Anything plus zero gives itself.
q=\frac{-1}{3}
Divide both sides by 3.
q=-\frac{1}{3}
Fraction \frac{-1}{3} can be rewritten as -\frac{1}{3} by extracting the negative sign.
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