Solve for x
x = \frac{65}{14} = 4\frac{9}{14} \approx 4.642857143
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x=\frac{32.5}{7}
Divide both sides by 7.
x=\frac{325}{70}
Expand \frac{32.5}{7} by multiplying both numerator and the denominator by 10.
x=\frac{65}{14}
Reduce the fraction \frac{325}{70} to lowest terms by extracting and canceling out 5.
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{ x } ^ { 2 } - 4 x - 5 = 0
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4 \sin \theta \cos \theta = 2 \sin \theta
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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.
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
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Limits
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