Solve for x
x=5
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Linear Equation
5 problems similar to:
\frac { 2 x } { 3 } - \frac { x } { 6 } = \frac { 5 } { 2 }
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2\times 2x-x=15
Multiply both sides of the equation by 6, the least common multiple of 3,6,2.
4x-x=15
Multiply 2 and 2 to get 4.
3x=15
Combine 4x and -x to get 3x.
x=\frac{15}{3}
Divide both sides by 3.
x=5
Divide 15 by 3 to get 5.
Examples
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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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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
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}