Solve for x
x\leq -1
Graph
Share
Copied to clipboard
-40+20x+3x\leq 7\left(3x-6\right)
Use the distributive property to multiply -5 by 8-4x.
-40+23x\leq 7\left(3x-6\right)
Combine 20x and 3x to get 23x.
-40+23x\leq 21x-42
Use the distributive property to multiply 7 by 3x-6.
-40+23x-21x\leq -42
Subtract 21x from both sides.
-40+2x\leq -42
Combine 23x and -21x to get 2x.
2x\leq -42+40
Add 40 to both sides.
2x\leq -2
Add -42 and 40 to get -2.
x\leq \frac{-2}{2}
Divide both sides by 2. Since 2 is positive, the inequality direction remains the same.
x\leq -1
Divide -2 by 2 to get -1.
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}