Solve for y
y = -\frac{5}{3} = -1\frac{2}{3} \approx -1.666666667
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2y=-2-\frac{4}{3}
Subtract \frac{4}{3} from both sides.
2y=-\frac{6}{3}-\frac{4}{3}
Convert -2 to fraction -\frac{6}{3}.
2y=\frac{-6-4}{3}
Since -\frac{6}{3} and \frac{4}{3} have the same denominator, subtract them by subtracting their numerators.
2y=-\frac{10}{3}
Subtract 4 from -6 to get -10.
y=\frac{-\frac{10}{3}}{2}
Divide both sides by 2.
y=\frac{-10}{3\times 2}
Express \frac{-\frac{10}{3}}{2} as a single fraction.
y=\frac{-10}{6}
Multiply 3 and 2 to get 6.
y=-\frac{5}{3}
Reduce the fraction \frac{-10}{6} to lowest terms by extracting and canceling out 2.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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4 \sin \theta \cos \theta = 2 \sin \theta
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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}