Solve for x
x=\frac{2}{3}\approx 0.666666667
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3x+2=4
Multiply both sides by 4.
3x=4-2
Subtract 2 from both sides.
3x=2
Subtract 2 from 4 to get 2.
x=\frac{2}{3}
Divide both sides by 3.
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
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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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