Solve for x
x=-\frac{2}{3}\approx -0.666666667
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2\left(2x+1\right)=x
Variable x cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by 2x, the least common multiple of x,2.
4x+2=x
Use the distributive property to multiply 2 by 2x+1.
4x+2-x=0
Subtract x from both sides.
3x+2=0
Combine 4x and -x to get 3x.
3x=-2
Subtract 2 from both sides. Anything subtracted from zero gives its negation.
x=\frac{-2}{3}
Divide both sides by 3.
x=-\frac{2}{3}
Fraction \frac{-2}{3} can be rewritten as -\frac{2}{3} by extracting the negative sign.
Examples
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4 \sin \theta \cos \theta = 2 \sin \theta
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y = 3x + 4
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Matrix
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Simultaneous equation
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Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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