Solve for x
x = -\frac{7}{2} = -3\frac{1}{2} = -3.5
Graph
Share
Copied to clipboard
6x-4\left(-1-\frac{15}{2}-x\right)=2x+6
Multiply both sides of the equation by 6, the least common multiple of 3,2.
6x-4\left(-\frac{2}{2}-\frac{15}{2}-x\right)=2x+6
Convert -1 to fraction -\frac{2}{2}.
6x-4\left(\frac{-2-15}{2}-x\right)=2x+6
Since -\frac{2}{2} and \frac{15}{2} have the same denominator, subtract them by subtracting their numerators.
6x-4\left(-\frac{17}{2}-x\right)=2x+6
Subtract 15 from -2 to get -17.
6x-4\left(-\frac{17}{2}\right)+4x=2x+6
Use the distributive property to multiply -4 by -\frac{17}{2}-x.
6x+\frac{-4\left(-17\right)}{2}+4x=2x+6
Express -4\left(-\frac{17}{2}\right) as a single fraction.
6x+\frac{68}{2}+4x=2x+6
Multiply -4 and -17 to get 68.
6x+34+4x=2x+6
Divide 68 by 2 to get 34.
10x+34=2x+6
Combine 6x and 4x to get 10x.
10x+34-2x=6
Subtract 2x from both sides.
8x+34=6
Combine 10x and -2x to get 8x.
8x=6-34
Subtract 34 from both sides.
8x=-28
Subtract 34 from 6 to get -28.
x=\frac{-28}{8}
Divide both sides by 8.
x=-\frac{7}{2}
Reduce the fraction \frac{-28}{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}