Solve for x
x = \frac{41}{11} = 3\frac{8}{11} \approx 3.727272727
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5-6x+21=4\left(x-2\right)-\left(7-x\right)
Use the distributive property to multiply -3 by 2x-7.
26-6x=4\left(x-2\right)-\left(7-x\right)
Add 5 and 21 to get 26.
26-6x=4x-8-\left(7-x\right)
Use the distributive property to multiply 4 by x-2.
26-6x=4x-8-7-\left(-x\right)
To find the opposite of 7-x, find the opposite of each term.
26-6x=4x-8-7+x
The opposite of -x is x.
26-6x=4x-15+x
Subtract 7 from -8 to get -15.
26-6x=5x-15
Combine 4x and x to get 5x.
26-6x-5x=-15
Subtract 5x from both sides.
26-11x=-15
Combine -6x and -5x to get -11x.
-11x=-15-26
Subtract 26 from both sides.
-11x=-41
Subtract 26 from -15 to get -41.
x=\frac{-41}{-11}
Divide both sides by -11.
x=\frac{41}{11}
Fraction \frac{-41}{-11} can be simplified to \frac{41}{11} by removing the negative sign from both the numerator and the denominator.
Examples
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{ 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}