Solve for f
f = -\frac{104}{9} = -11\frac{5}{9} \approx -11.555555556
Share
Copied to clipboard
9f-\left(11\times 9+4\right)=-207
Multiply both sides of the equation by 9.
9f-\left(99+4\right)=-207
Multiply 11 and 9 to get 99.
9f-103=-207
Add 99 and 4 to get 103.
9f=-207+103
Add 103 to both sides.
9f=-104
Add -207 and 103 to get -104.
f=\frac{-104}{9}
Divide both sides by 9.
f=-\frac{104}{9}
Fraction \frac{-104}{9} can be rewritten as -\frac{104}{9} by extracting the negative sign.
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}