Solve for w
w=-\frac{9}{20}=-0.45
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w=-\frac{1}{4}-\frac{1}{5}
Subtract \frac{1}{5} from both sides.
w=-\frac{5}{20}-\frac{4}{20}
Least common multiple of 4 and 5 is 20. Convert -\frac{1}{4} and \frac{1}{5} to fractions with denominator 20.
w=\frac{-5-4}{20}
Since -\frac{5}{20} and \frac{4}{20} have the same denominator, subtract them by subtracting their numerators.
w=-\frac{9}{20}
Subtract 4 from -5 to get -9.
Examples
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y = 3x + 4
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Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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