Solve for x
x=\frac{1}{f+3}
f\neq -3
Graph
Share
Copied to clipboard
fx=-\left(6x-3x+1-2\right)
Combine x and 5x to get 6x.
fx=-\left(3x+1-2\right)
Combine 6x and -3x to get 3x.
fx=-\left(3x-1\right)
Subtract 2 from 1 to get -1.
fx=-3x+1
To find the opposite of 3x-1, find the opposite of each term.
fx+3x=1
Add 3x to both sides.
\left(f+3\right)x=1
Combine all terms containing x.
\frac{\left(f+3\right)x}{f+3}=\frac{1}{f+3}
Divide both sides by f+3.
x=\frac{1}{f+3}
Dividing by f+3 undoes the multiplication by f+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}