Solve for n
n = \frac{25}{3} = 8\frac{1}{3} \approx 8.333333333
Share
Copied to clipboard
9\left(n-7\right)=2\times 6
Multiply both sides of the equation by 18, the least common multiple of 2,9.
9n-63=2\times 6
Use the distributive property to multiply 9 by n-7.
9n-63=12
Multiply 2 and 6 to get 12.
9n=12+63
Add 63 to both sides.
9n=75
Add 12 and 63 to get 75.
n=\frac{75}{9}
Divide both sides by 9.
n=\frac{25}{3}
Reduce the fraction \frac{75}{9} to lowest terms by extracting and canceling out 3.
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}