Solve for x
x = \frac{63}{4} = 15\frac{3}{4} = 15.75
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2x=\frac{63}{2}
Reduce the fraction \frac{126}{4} to lowest terms by extracting and canceling out 2.
x=\frac{\frac{63}{2}}{2}
Divide both sides by 2.
x=\frac{63}{2\times 2}
Express \frac{\frac{63}{2}}{2} as a single fraction.
x=\frac{63}{4}
Multiply 2 and 2 to get 4.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
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Matrix
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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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