Solve for x
x = \frac{25}{9} = 2\frac{7}{9} \approx 2.777777778
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-6x-21-5+6-8\left(1-2x\right)-\left(x-3\right)=0
Use the distributive property to multiply -3 by 2x+7.
-6x-26+6-8\left(1-2x\right)-\left(x-3\right)=0
Subtract 5 from -21 to get -26.
-6x-20-8\left(1-2x\right)-\left(x-3\right)=0
Add -26 and 6 to get -20.
-6x-20-8+16x-\left(x-3\right)=0
Use the distributive property to multiply -8 by 1-2x.
-6x-28+16x-\left(x-3\right)=0
Subtract 8 from -20 to get -28.
10x-28-\left(x-3\right)=0
Combine -6x and 16x to get 10x.
10x-28-x-\left(-3\right)=0
To find the opposite of x-3, find the opposite of each term.
10x-28-x+3=0
The opposite of -3 is 3.
9x-28+3=0
Combine 10x and -x to get 9x.
9x-25=0
Add -28 and 3 to get -25.
9x=25
Add 25 to both sides. Anything plus zero gives itself.
x=\frac{25}{9}
Divide both sides by 9.
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}