Solve for y
y=-17
Assign y
y≔-17
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y=\frac{-5\times 4}{2}-7
Express -\frac{5}{2}\times 4 as a single fraction.
y=\frac{-20}{2}-7
Multiply -5 and 4 to get -20.
y=-10-7
Divide -20 by 2 to get -10.
y=-17
Subtract 7 from -10 to get -17.
Examples
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Matrix
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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 ) }
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Limits
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