Solve for x
x=-2
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Quiz
Linear Equation
5 problems similar to:
\frac { x } { 4 } + \frac { 4 } { 5 } = \frac { 3 } { 10 }
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5x+16=6
Multiply both sides of the equation by 20, the least common multiple of 4,5,10.
5x=6-16
Subtract 16 from both sides.
5x=-10
Subtract 16 from 6 to get -10.
x=\frac{-10}{5}
Divide both sides by 5.
x=-2
Divide -10 by 5 to get -2.
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}