Solve for x
x = \frac{27 {(\sqrt{5} - 1)}}{2} \approx 16.686917696
Graph
Quiz
Linear Equation
5 problems similar to:
\frac { 2 \sqrt { 5 } - 2 } { x } = \frac { 4 } { 25 + 2 }
Share
Copied to clipboard
2\sqrt{5}-2=\frac{1}{27}x\times 4
Variable x cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by x.
2\sqrt{5}-2=\frac{4}{27}x
Multiply \frac{1}{27} and 4 to get \frac{4}{27}.
\frac{4}{27}x=2\sqrt{5}-2
Swap sides so that all variable terms are on the left hand side.
\frac{\frac{4}{27}x}{\frac{4}{27}}=\frac{2\sqrt{5}-2}{\frac{4}{27}}
Divide both sides of the equation by \frac{4}{27}, which is the same as multiplying both sides by the reciprocal of the fraction.
x=\frac{2\sqrt{5}-2}{\frac{4}{27}}
Dividing by \frac{4}{27} undoes the multiplication by \frac{4}{27}.
x=\frac{27\sqrt{5}-27}{2}
Divide 2\sqrt{5}-2 by \frac{4}{27} by multiplying 2\sqrt{5}-2 by the reciprocal of \frac{4}{27}.
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometry
4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
699 * 533
Matrix
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
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}