Solve for x
x = -\frac{31}{2} = -15\frac{1}{2} = -15.5
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-2x-31=0
Combine x and -3x to get -2x.
-2x=31
Add 31 to both sides. Anything plus zero gives itself.
x=\frac{31}{-2}
Divide both sides by -2.
x=-\frac{31}{2}
Fraction \frac{31}{-2} can be rewritten as -\frac{31}{2} by extracting the negative sign.
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