Solve for x
x = -\frac{59}{2} = -29\frac{1}{2} = -29.5
Graph
Share
Copied to clipboard
6x-2\times 7\left(x-2\right)=72-3\left(2x-5\right)
Multiply both sides of the equation by 18, the least common multiple of 3,9,6.
6x-14\left(x-2\right)=72-3\left(2x-5\right)
Multiply -2 and 7 to get -14.
6x-14x+28=72-3\left(2x-5\right)
Use the distributive property to multiply -14 by x-2.
-8x+28=72-3\left(2x-5\right)
Combine 6x and -14x to get -8x.
-8x+28=72-6x+15
Use the distributive property to multiply -3 by 2x-5.
-8x+28=87-6x
Add 72 and 15 to get 87.
-8x+28+6x=87
Add 6x to both sides.
-2x+28=87
Combine -8x and 6x to get -2x.
-2x=87-28
Subtract 28 from both sides.
-2x=59
Subtract 28 from 87 to get 59.
x=\frac{59}{-2}
Divide both sides by -2.
x=-\frac{59}{2}
Fraction \frac{59}{-2} can be rewritten as -\frac{59}{2} 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}