Solve for x
x = -\frac{11}{6} = -1\frac{5}{6} \approx -1.833333333
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4x+\frac{2\times 7}{6}=-5
Express 2\times \frac{7}{6} as a single fraction.
4x+\frac{14}{6}=-5
Multiply 2 and 7 to get 14.
4x+\frac{7}{3}=-5
Reduce the fraction \frac{14}{6} to lowest terms by extracting and canceling out 2.
4x=-5-\frac{7}{3}
Subtract \frac{7}{3} from both sides.
4x=-\frac{15}{3}-\frac{7}{3}
Convert -5 to fraction -\frac{15}{3}.
4x=\frac{-15-7}{3}
Since -\frac{15}{3} and \frac{7}{3} have the same denominator, subtract them by subtracting their numerators.
4x=-\frac{22}{3}
Subtract 7 from -15 to get -22.
x=\frac{-\frac{22}{3}}{4}
Divide both sides by 4.
x=\frac{-22}{3\times 4}
Express \frac{-\frac{22}{3}}{4} as a single fraction.
x=\frac{-22}{12}
Multiply 3 and 4 to get 12.
x=-\frac{11}{6}
Reduce the fraction \frac{-22}{12} to lowest terms by extracting and canceling out 2.
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{ x } ^ { 2 } - 4 x - 5 = 0
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4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
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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}