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-\frac{7x}{2}-17
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-\frac{7x}{2}-17
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\frac{1}{2}x-1+2\left(-2x-8\right)
Combine -4x and 2x to get -2x.
\frac{1}{2}x-1-4x-16
Use the distributive property to multiply 2 by -2x-8.
-\frac{7}{2}x-1-16
Combine \frac{1}{2}x and -4x to get -\frac{7}{2}x.
-\frac{7}{2}x-17
Subtract 16 from -1 to get -17.
\frac{1}{2}x-1+2\left(-2x-8\right)
Combine -4x and 2x to get -2x.
\frac{1}{2}x-1-4x-16
Use the distributive property to multiply 2 by -2x-8.
-\frac{7}{2}x-1-16
Combine \frac{1}{2}x and -4x to get -\frac{7}{2}x.
-\frac{7}{2}x-17
Subtract 16 from -1 to get -17.
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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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