Evaluate
\frac{7x}{5}-25
Factor
\frac{7x-125}{5}
Graph
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\frac{7x}{5}-\frac{25\times 5}{5}
To add or subtract expressions, expand them to make their denominators the same. Multiply 25 times \frac{5}{5}.
\frac{7x-25\times 5}{5}
Since \frac{7x}{5} and \frac{25\times 5}{5} have the same denominator, subtract them by subtracting their numerators.
\frac{7x-125}{5}
Do the multiplications in 7x-25\times 5.
\frac{7x-125}{5}
Factor out \frac{1}{5}.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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Matrix
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Simultaneous equation
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Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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