Solve for x
x = \frac{42}{41} = 1\frac{1}{41} \approx 1.024390244
Graph
Share
Copied to clipboard
-2.05x=8.3-10.4
Variable x cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by x.
-2.05x=-2.1
Subtract 10.4 from 8.3 to get -2.1.
x=\frac{-2.1}{-2.05}
Divide both sides by -2.05.
x=\frac{-210}{-205}
Expand \frac{-2.1}{-2.05} by multiplying both numerator and the denominator by 100.
x=\frac{42}{41}
Reduce the fraction \frac{-210}{-205} to lowest terms by extracting and canceling out -5.
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}