Solve for x
x=\frac{1}{2}=0.5
Graph
Share
Copied to clipboard
18x+3=2\left(4\times 3+1\right)x-1
Multiply both sides of the equation by 6, the least common multiple of 2,3,6.
18x+3=2\left(12+1\right)x-1
Multiply 4 and 3 to get 12.
18x+3=2\times 13x-1
Add 12 and 1 to get 13.
18x+3=26x-1
Multiply 2 and 13 to get 26.
18x+3-26x=-1
Subtract 26x from both sides.
-8x+3=-1
Combine 18x and -26x to get -8x.
-8x=-1-3
Subtract 3 from both sides.
-8x=-4
Subtract 3 from -1 to get -4.
x=\frac{-4}{-8}
Divide both sides by -8.
x=\frac{1}{2}
Reduce the fraction \frac{-4}{-8} to lowest terms by extracting and canceling out -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}