Solve for x
x=-\frac{3}{10}=-0.3
Graph
Share
Copied to clipboard
6\left(2x-1\right)+4\left(2x+3\right)=2\left(x+1\right)-\left(x-1\right)+9x
Multiply both sides of the equation by 12, the least common multiple of 2,3,6,12,4.
12x-6+4\left(2x+3\right)=2\left(x+1\right)-\left(x-1\right)+9x
Use the distributive property to multiply 6 by 2x-1.
12x-6+8x+12=2\left(x+1\right)-\left(x-1\right)+9x
Use the distributive property to multiply 4 by 2x+3.
20x-6+12=2\left(x+1\right)-\left(x-1\right)+9x
Combine 12x and 8x to get 20x.
20x+6=2\left(x+1\right)-\left(x-1\right)+9x
Add -6 and 12 to get 6.
20x+6=2x+2-\left(x-1\right)+9x
Use the distributive property to multiply 2 by x+1.
20x+6=2x+2-x-\left(-1\right)+9x
To find the opposite of x-1, find the opposite of each term.
20x+6=2x+2-x+1+9x
The opposite of -1 is 1.
20x+6=x+2+1+9x
Combine 2x and -x to get x.
20x+6=x+3+9x
Add 2 and 1 to get 3.
20x+6=10x+3
Combine x and 9x to get 10x.
20x+6-10x=3
Subtract 10x from both sides.
10x+6=3
Combine 20x and -10x to get 10x.
10x=3-6
Subtract 6 from both sides.
10x=-3
Subtract 6 from 3 to get -3.
x=\frac{-3}{10}
Divide both sides by 10.
x=-\frac{3}{10}
Fraction \frac{-3}{10} can be rewritten as -\frac{3}{10} 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}