Solve for x
x=3\sqrt{7}+8\approx 15.937253933
Graph
Quiz
Linear Equation
5 problems similar to:
8 = - \frac { 3 \sqrt { 7 } } { 2 } \div \frac { 1 } { 2 } + x
Share
Copied to clipboard
\frac{-\frac{3\sqrt{7}}{2}}{\frac{1}{2}}+x=8
Swap sides so that all variable terms are on the left hand side.
x=8-\frac{-\frac{3\sqrt{7}}{2}}{\frac{1}{2}}
Subtract \frac{-\frac{3\sqrt{7}}{2}}{\frac{1}{2}} from both sides.
x=-\left(-\frac{\frac{3\sqrt{7}}{2}}{\frac{1}{2}}\right)+8
Reorder the terms.
x=\frac{\frac{3\sqrt{7}}{2}}{\frac{1}{2}}+8
Multiply -1 and -1 to get 1.
x=\frac{3\sqrt{7}}{\frac{1}{2}\times 2}+8
Reorder the terms.
x=\frac{3\sqrt{7}}{1}+8
Cancel out 2 and 2.
x=3\sqrt{7}+8
Anything divided by one gives itself.
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}