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13-29u
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13-29u
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-35u+21-\left(-6u+8\right)
Use the distributive property to multiply -7 by 5u-3.
-35u+21-\left(-6u\right)-8
To find the opposite of -6u+8, find the opposite of each term.
-35u+21+6u-8
The opposite of -6u is 6u.
-29u+21-8
Combine -35u and 6u to get -29u.
-29u+13
Subtract 8 from 21 to get 13.
-35u+21-\left(-6u+8\right)
Use the distributive property to multiply -7 by 5u-3.
-35u+21-\left(-6u\right)-8
To find the opposite of -6u+8, find the opposite of each term.
-35u+21+6u-8
The opposite of -6u is 6u.
-29u+21-8
Combine -35u and 6u to get -29u.
-29u+13
Subtract 8 from 21 to get 13.
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y = 3x + 4
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Matrix
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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
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}