Solve for x
x=7
Graph
Quiz
Linear Equation
5 problems similar to:
4 ( x - 8 ) + 7 ( 14 - x ) = 5 ( x + 9 ) - 2 ( x + 10 ) - 1
Share
Copied to clipboard
4x-32+7\left(14-x\right)=5\left(x+9\right)-2\left(x+10\right)-1
Use the distributive property to multiply 4 by x-8.
4x-32+98-7x=5\left(x+9\right)-2\left(x+10\right)-1
Use the distributive property to multiply 7 by 14-x.
4x+66-7x=5\left(x+9\right)-2\left(x+10\right)-1
Add -32 and 98 to get 66.
-3x+66=5\left(x+9\right)-2\left(x+10\right)-1
Combine 4x and -7x to get -3x.
-3x+66=5x+45-2\left(x+10\right)-1
Use the distributive property to multiply 5 by x+9.
-3x+66=5x+45-2x-20-1
Use the distributive property to multiply -2 by x+10.
-3x+66=3x+45-20-1
Combine 5x and -2x to get 3x.
-3x+66=3x+25-1
Subtract 20 from 45 to get 25.
-3x+66=3x+24
Subtract 1 from 25 to get 24.
-3x+66-3x=24
Subtract 3x from both sides.
-6x+66=24
Combine -3x and -3x to get -6x.
-6x=24-66
Subtract 66 from both sides.
-6x=-42
Subtract 66 from 24 to get -42.
x=\frac{-42}{-6}
Divide both sides by -6.
x=7
Divide -42 by -6 to get 7.
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}