Solve for x
x\leq 4
Graph
Share
Copied to clipboard
3.2x\leq -3.2+16
Add 16 to both sides.
3.2x\leq 12.8
Add -3.2 and 16 to get 12.8.
x\leq \frac{12.8}{3.2}
Divide both sides by 3.2. Since 3.2 is positive, the inequality direction remains the same.
x\leq \frac{128}{32}
Expand \frac{12.8}{3.2} by multiplying both numerator and the denominator by 10.
x\leq 4
Divide 128 by 32 to get 4.
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}