Solve for x
x=2.2
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-0.45x=-0.66-0.33
Subtract 0.33 from both sides.
-0.45x=-0.99
Subtract 0.33 from -0.66 to get -0.99.
x=\frac{-0.99}{-0.45}
Divide both sides by -0.45.
x=\frac{-99}{-45}
Expand \frac{-0.99}{-0.45} by multiplying both numerator and the denominator by 100.
x=\frac{11}{5}
Reduce the fraction \frac{-99}{-45} to lowest terms by extracting and canceling out -9.
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{ x } ^ { 2 } - 4 x - 5 = 0
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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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