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3\left(-\frac{27}{7}+\frac{35}{7}\right)=2\left(-6-\left(-\frac{27}{7}\right)\right)-2\left(-\frac{27}{7}\right)
Convert 5 to fraction \frac{35}{7}.
3\times \frac{-27+35}{7}=2\left(-6-\left(-\frac{27}{7}\right)\right)-2\left(-\frac{27}{7}\right)
Since -\frac{27}{7} and \frac{35}{7} have the same denominator, add them by adding their numerators.
3\times \frac{8}{7}=2\left(-6-\left(-\frac{27}{7}\right)\right)-2\left(-\frac{27}{7}\right)
Add -27 and 35 to get 8.
\frac{3\times 8}{7}=2\left(-6-\left(-\frac{27}{7}\right)\right)-2\left(-\frac{27}{7}\right)
Express 3\times \frac{8}{7} as a single fraction.
\frac{24}{7}=2\left(-6-\left(-\frac{27}{7}\right)\right)-2\left(-\frac{27}{7}\right)
Multiply 3 and 8 to get 24.
\frac{24}{7}=2\left(-6+\frac{27}{7}\right)-2\left(-\frac{27}{7}\right)
The opposite of -\frac{27}{7} is \frac{27}{7}.
\frac{24}{7}=2\left(-\frac{42}{7}+\frac{27}{7}\right)-2\left(-\frac{27}{7}\right)
Convert -6 to fraction -\frac{42}{7}.
\frac{24}{7}=2\times \frac{-42+27}{7}-2\left(-\frac{27}{7}\right)
Since -\frac{42}{7} and \frac{27}{7} have the same denominator, add them by adding their numerators.
\frac{24}{7}=2\left(-\frac{15}{7}\right)-2\left(-\frac{27}{7}\right)
Add -42 and 27 to get -15.
\frac{24}{7}=\frac{2\left(-15\right)}{7}-2\left(-\frac{27}{7}\right)
Express 2\left(-\frac{15}{7}\right) as a single fraction.
\frac{24}{7}=\frac{-30}{7}-2\left(-\frac{27}{7}\right)
Multiply 2 and -15 to get -30.
\frac{24}{7}=-\frac{30}{7}-2\left(-\frac{27}{7}\right)
Fraction \frac{-30}{7} can be rewritten as -\frac{30}{7} by extracting the negative sign.
\frac{24}{7}=-\frac{30}{7}-\frac{2\left(-27\right)}{7}
Express 2\left(-\frac{27}{7}\right) as a single fraction.
\frac{24}{7}=-\frac{30}{7}-\frac{-54}{7}
Multiply 2 and -27 to get -54.
\frac{24}{7}=-\frac{30}{7}-\left(-\frac{54}{7}\right)
Fraction \frac{-54}{7} can be rewritten as -\frac{54}{7} by extracting the negative sign.
\frac{24}{7}=-\frac{30}{7}+\frac{54}{7}
The opposite of -\frac{54}{7} is \frac{54}{7}.
\frac{24}{7}=\frac{-30+54}{7}
Since -\frac{30}{7} and \frac{54}{7} have the same denominator, add them by adding their numerators.
\frac{24}{7}=\frac{24}{7}
Add -30 and 54 to get 24.
\text{true}
Compare \frac{24}{7} and \frac{24}{7}.
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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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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}