Solve for x
x=-\frac{1}{2}=-0.5
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-x-\left(-2\right)+3\left(x-1\right)+2=0
To find the opposite of x-2, find the opposite of each term.
-x+2+3\left(x-1\right)+2=0
The opposite of -2 is 2.
-x+2+3x-3+2=0
Use the distributive property to multiply 3 by x-1.
2x+2-3+2=0
Combine -x and 3x to get 2x.
2x-1+2=0
Subtract 3 from 2 to get -1.
2x+1=0
Add -1 and 2 to get 1.
2x=-1
Subtract 1 from both sides. Anything subtracted from zero gives its negation.
x=\frac{-1}{2}
Divide both sides by 2.
x=-\frac{1}{2}
Fraction \frac{-1}{2} can be rewritten as -\frac{1}{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}