Solve for x
x = -\frac{9}{2} = -4\frac{1}{2} = -4.5
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2\left(x+1\right)-4\left(x-4\right)=24+3
Multiply both sides of the equation by 12, the least common multiple of 6,3,4.
2x+2-4\left(x-4\right)=24+3
Use the distributive property to multiply 2 by x+1.
2x+2-4x+16=24+3
Use the distributive property to multiply -4 by x-4.
-2x+2+16=24+3
Combine 2x and -4x to get -2x.
-2x+18=24+3
Add 2 and 16 to get 18.
-2x+18=27
Add 24 and 3 to get 27.
-2x=27-18
Subtract 18 from both sides.
-2x=9
Subtract 18 from 27 to get 9.
x=\frac{9}{-2}
Divide both sides by -2.
x=-\frac{9}{2}
Fraction \frac{9}{-2} can be rewritten as -\frac{9}{2} by extracting the negative sign.
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
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}