Evaluate
\frac{394x+6679}{x+17}
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\frac{394x+6679}{x+17}
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\frac{393\left(17+x\right)}{17+x}+\frac{x-2}{17+x}
To add or subtract expressions, expand them to make their denominators the same. Multiply 393 times \frac{17+x}{17+x}.
\frac{393\left(17+x\right)+x-2}{17+x}
Since \frac{393\left(17+x\right)}{17+x} and \frac{x-2}{17+x} have the same denominator, add them by adding their numerators.
\frac{6681+393x+x-2}{17+x}
Do the multiplications in 393\left(17+x\right)+x-2.
\frac{6679+394x}{17+x}
Combine like terms in 6681+393x+x-2.
\frac{393\left(17+x\right)}{17+x}+\frac{x-2}{17+x}
To add or subtract expressions, expand them to make their denominators the same. Multiply 393 times \frac{17+x}{17+x}.
\frac{393\left(17+x\right)+x-2}{17+x}
Since \frac{393\left(17+x\right)}{17+x} and \frac{x-2}{17+x} have the same denominator, add them by adding their numerators.
\frac{6681+393x+x-2}{17+x}
Do the multiplications in 393\left(17+x\right)+x-2.
\frac{6679+394x}{17+x}
Combine like terms in 6681+393x+x-2.
Examples
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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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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}