Solve for x
x = -\frac{50}{9} = -5\frac{5}{9} \approx -5.555555556
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\frac{1}{4}x+\frac{8}{9}=-\frac{1}{2}
Reduce the fraction \frac{-6}{12} to lowest terms by extracting and canceling out 6.
\frac{1}{4}x=-\frac{1}{2}-\frac{8}{9}
Subtract \frac{8}{9} from both sides.
\frac{1}{4}x=-\frac{9}{18}-\frac{16}{18}
Least common multiple of 2 and 9 is 18. Convert -\frac{1}{2} and \frac{8}{9} to fractions with denominator 18.
\frac{1}{4}x=\frac{-9-16}{18}
Since -\frac{9}{18} and \frac{16}{18} have the same denominator, subtract them by subtracting their numerators.
\frac{1}{4}x=-\frac{25}{18}
Subtract 16 from -9 to get -25.
x=-\frac{25}{18}\times 4
Multiply both sides by 4, the reciprocal of \frac{1}{4}.
x=\frac{-25\times 4}{18}
Express -\frac{25}{18}\times 4 as a single fraction.
x=\frac{-100}{18}
Multiply -25 and 4 to get -100.
x=-\frac{50}{9}
Reduce the fraction \frac{-100}{18} to lowest terms by extracting and canceling out 2.
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}