Solve for x
x<3
Graph
Share
Copied to clipboard
3\left(x+1\right)<2\left(9-x\right)
Multiply both sides of the equation by 6, the least common multiple of 2,3. Since 6 is positive, the inequality direction remains the same.
3x+3<2\left(9-x\right)
Use the distributive property to multiply 3 by x+1.
3x+3<18-2x
Use the distributive property to multiply 2 by 9-x.
3x+3+2x<18
Add 2x to both sides.
5x+3<18
Combine 3x and 2x to get 5x.
5x<18-3
Subtract 3 from both sides.
5x<15
Subtract 3 from 18 to get 15.
x<\frac{15}{5}
Divide both sides by 5. Since 5 is positive, the inequality direction remains the same.
x<3
Divide 15 by 5 to get 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}