Solve for x
x = \frac{9}{4} = 2\frac{1}{4} = 2.25
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4x=3+6
Add 6 to both sides.
4x=9
Add 3 and 6 to get 9.
x=\frac{9}{4}
Divide both sides by 4.
Examples
Quadratic equation
{ 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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