Solve for y
y=-18
Assign y
y≔-18
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y=-2+9\left(-1\right)-7
Calculate -1 to the power of 2 and get 1.
y=-2-9-7
Multiply 9 and -1 to get -9.
y=-11-7
Subtract 9 from -2 to get -11.
y=-18
Subtract 7 from -11 to get -18.
Examples
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y = 3x + 4
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Matrix
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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