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-8x-70
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\left(-7-\frac{4}{5}x\right)\times 10
Reduce the fraction \frac{8}{10} to lowest terms by extracting and canceling out 2.
-70-\frac{4}{5}x\times 10
Use the distributive property to multiply -7-\frac{4}{5}x by 10.
-70+\frac{-4\times 10}{5}x
Express -\frac{4}{5}\times 10 as a single fraction.
-70+\frac{-40}{5}x
Multiply -4 and 10 to get -40.
-70-8x
Divide -40 by 5 to get -8.
\left(-7-\frac{4}{5}x\right)\times 10
Reduce the fraction \frac{8}{10} to lowest terms by extracting and canceling out 2.
-70-\frac{4}{5}x\times 10
Use the distributive property to multiply -7-\frac{4}{5}x by 10.
-70+\frac{-4\times 10}{5}x
Express -\frac{4}{5}\times 10 as a single fraction.
-70+\frac{-40}{5}x
Multiply -4 and 10 to get -40.
-70-8x
Divide -40 by 5 to get -8.
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y = 3x + 4
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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
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