Solve for x
x = \frac{23}{4} = 5\frac{3}{4} = 5.75
Graph
Share
Copied to clipboard
4x+1\times 4+3=2\left(7\times 2+1\right)
Multiply both sides of the equation by 4, the least common multiple of 4,2.
4x+4+3=2\left(7\times 2+1\right)
Multiply 1 and 4 to get 4.
4x+7=2\left(7\times 2+1\right)
Add 4 and 3 to get 7.
4x+7=2\left(14+1\right)
Multiply 7 and 2 to get 14.
4x+7=2\times 15
Add 14 and 1 to get 15.
4x+7=30
Multiply 2 and 15 to get 30.
4x=30-7
Subtract 7 from both sides.
4x=23
Subtract 7 from 30 to get 23.
x=\frac{23}{4}
Divide both sides by 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}