Solve for x
x = -\frac{37}{18} = -2\frac{1}{18} \approx -2.055555556
Graph
Share
Copied to clipboard
\left(x-1\right)\times 2-5\times 3=\left(5x+5\right)\times 4
Variable x cannot be equal to any of the values -1,1 since division by zero is not defined. Multiply both sides of the equation by 5\left(x-1\right)\left(x+1\right), the least common multiple of 5x+5,x^{2}-1,x-1.
2x-2-5\times 3=\left(5x+5\right)\times 4
Use the distributive property to multiply x-1 by 2.
2x-2-15=\left(5x+5\right)\times 4
Multiply -5 and 3 to get -15.
2x-17=\left(5x+5\right)\times 4
Subtract 15 from -2 to get -17.
2x-17=20x+20
Use the distributive property to multiply 5x+5 by 4.
2x-17-20x=20
Subtract 20x from both sides.
-18x-17=20
Combine 2x and -20x to get -18x.
-18x=20+17
Add 17 to both sides.
-18x=37
Add 20 and 17 to get 37.
x=\frac{37}{-18}
Divide both sides by -18.
x=-\frac{37}{18}
Fraction \frac{37}{-18} can be rewritten as -\frac{37}{18} by extracting the negative sign.
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}