Solve for x
x = \frac{20}{3} = 6\frac{2}{3} \approx 6.666666667
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12-3x+6-2x=2-\left(x-\left(3-x\right)+2\right)-5
Use the distributive property to multiply 3 by 4-x.
18-3x-2x=2-\left(x-\left(3-x\right)+2\right)-5
Add 12 and 6 to get 18.
18-5x=2-\left(x-\left(3-x\right)+2\right)-5
Combine -3x and -2x to get -5x.
18-5x=2-\left(x-3-\left(-x\right)+2\right)-5
To find the opposite of 3-x, find the opposite of each term.
18-5x=2-\left(x-3+x+2\right)-5
The opposite of -x is x.
18-5x=2-\left(2x-3+2\right)-5
Combine x and x to get 2x.
18-5x=2-\left(2x-1\right)-5
Add -3 and 2 to get -1.
18-5x=2-2x-\left(-1\right)-5
To find the opposite of 2x-1, find the opposite of each term.
18-5x=2-2x+1-5
The opposite of -1 is 1.
18-5x=3-2x-5
Add 2 and 1 to get 3.
18-5x=-2-2x
Subtract 5 from 3 to get -2.
18-5x+2x=-2
Add 2x to both sides.
18-3x=-2
Combine -5x and 2x to get -3x.
-3x=-2-18
Subtract 18 from both sides.
-3x=-20
Subtract 18 from -2 to get -20.
x=\frac{-20}{-3}
Divide both sides by -3.
x=\frac{20}{3}
Fraction \frac{-20}{-3} can be simplified to \frac{20}{3} by removing the negative sign from both the numerator and the denominator.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
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Matrix
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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}