Solve for x
x = \frac{67}{8} = 8\frac{3}{8} = 8.375
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6\times 3\left(x+1\right)-6\left(3x-4\right)=4\times 2\left(x-2\right)-9
Multiply both sides of the equation by 12, the least common multiple of 2,3,4.
18\left(x+1\right)-6\left(3x-4\right)=4\times 2\left(x-2\right)-9
Multiply 6 and 3 to get 18.
18x+18-6\left(3x-4\right)=4\times 2\left(x-2\right)-9
Use the distributive property to multiply 18 by x+1.
18x+18-18x+24=4\times 2\left(x-2\right)-9
Use the distributive property to multiply -6 by 3x-4.
18+24=4\times 2\left(x-2\right)-9
Combine 18x and -18x to get 0.
42=4\times 2\left(x-2\right)-9
Add 18 and 24 to get 42.
42=8\left(x-2\right)-9
Multiply 4 and 2 to get 8.
42=8x-16-9
Use the distributive property to multiply 8 by x-2.
42=8x-25
Subtract 9 from -16 to get -25.
8x-25=42
Swap sides so that all variable terms are on the left hand side.
8x=42+25
Add 25 to both sides.
8x=67
Add 42 and 25 to get 67.
x=\frac{67}{8}
Divide both sides by 8.
Examples
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{ 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}