Solve for m
m=-\frac{1}{4}=-0.25
Assign m
m≔-\frac{1}{4}
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m=\frac{-25+20}{12-\left(-8\right)}
The opposite of -20 is 20.
m=\frac{-5}{12-\left(-8\right)}
Add -25 and 20 to get -5.
m=\frac{-5}{12+8}
The opposite of -8 is 8.
m=\frac{-5}{20}
Add 12 and 8 to get 20.
m=-\frac{1}{4}
Reduce the fraction \frac{-5}{20} to lowest terms by extracting and canceling out 5.
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