Evaluate
35-\frac{27}{x}
Factor
\frac{35x-27}{x}
Graph
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35-\frac{81}{x\times 3}
Express \frac{\frac{81}{x}}{3} as a single fraction.
\frac{35x\times 3}{x\times 3}-\frac{81}{x\times 3}
To add or subtract expressions, expand them to make their denominators the same. Multiply 35 times \frac{x\times 3}{x\times 3}.
\frac{35x\times 3-81}{x\times 3}
Since \frac{35x\times 3}{x\times 3} and \frac{81}{x\times 3} have the same denominator, subtract them by subtracting their numerators.
\frac{105x-81}{x\times 3}
Do the multiplications in 35x\times 3-81.
\frac{3\left(35x-27\right)}{3x}
Factor the expressions that are not already factored in \frac{105x-81}{x\times 3}.
\frac{35x-27}{x}
Cancel out 3 in both numerator and denominator.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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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
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Limits
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