Solve for x
x=-5
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-2\times 2\left(x-3\right)+7-3\left(x-2\right)=18x-6\left(x-2\right)-9\times 3\left(x+1\right)
Multiply both sides of the equation by 18, the least common multiple of 9,18,6,3,2.
-4\left(x-3\right)+7-3\left(x-2\right)=18x-6\left(x-2\right)-9\times 3\left(x+1\right)
Multiply -2 and 2 to get -4.
-4x+12+7-3\left(x-2\right)=18x-6\left(x-2\right)-9\times 3\left(x+1\right)
Use the distributive property to multiply -4 by x-3.
-4x+19-3\left(x-2\right)=18x-6\left(x-2\right)-9\times 3\left(x+1\right)
Add 12 and 7 to get 19.
-4x+19-3x+6=18x-6\left(x-2\right)-9\times 3\left(x+1\right)
Use the distributive property to multiply -3 by x-2.
-7x+19+6=18x-6\left(x-2\right)-9\times 3\left(x+1\right)
Combine -4x and -3x to get -7x.
-7x+25=18x-6\left(x-2\right)-9\times 3\left(x+1\right)
Add 19 and 6 to get 25.
-7x+25=18x-6x+12-9\times 3\left(x+1\right)
Use the distributive property to multiply -6 by x-2.
-7x+25=12x+12-9\times 3\left(x+1\right)
Combine 18x and -6x to get 12x.
-7x+25=12x+12-27\left(x+1\right)
Multiply -9 and 3 to get -27.
-7x+25=12x+12-27x-27
Use the distributive property to multiply -27 by x+1.
-7x+25=-15x+12-27
Combine 12x and -27x to get -15x.
-7x+25=-15x-15
Subtract 27 from 12 to get -15.
-7x+25+15x=-15
Add 15x to both sides.
8x+25=-15
Combine -7x and 15x to get 8x.
8x=-15-25
Subtract 25 from both sides.
8x=-40
Subtract 25 from -15 to get -40.
x=\frac{-40}{8}
Divide both sides by 8.
x=-5
Divide -40 by 8 to get -5.
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}