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-\frac{9}{13}\times 7-\frac{10}{3}=-1
Fraction \frac{-9}{13} can be rewritten as -\frac{9}{13} by extracting the negative sign.
\frac{-9\times 7}{13}-\frac{10}{3}=-1
Express -\frac{9}{13}\times 7 as a single fraction.
\frac{-63}{13}-\frac{10}{3}=-1
Multiply -9 and 7 to get -63.
-\frac{63}{13}-\frac{10}{3}=-1
Fraction \frac{-63}{13} can be rewritten as -\frac{63}{13} by extracting the negative sign.
-\frac{189}{39}-\frac{130}{39}=-1
Least common multiple of 13 and 3 is 39. Convert -\frac{63}{13} and \frac{10}{3} to fractions with denominator 39.
\frac{-189-130}{39}=-1
Since -\frac{189}{39} and \frac{130}{39} have the same denominator, subtract them by subtracting their numerators.
-\frac{319}{39}=-1
Subtract 130 from -189 to get -319.
-\frac{319}{39}=-\frac{39}{39}
Convert -1 to fraction -\frac{39}{39}.
\text{false}
Compare -\frac{319}{39} and -\frac{39}{39}.
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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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\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}