The expression \(-5 + 7\) can be simplified as follows:
\[ -5 + 7 = 2 \]
The number 2 is a whole number and can also be expressed as a fraction (such as \(\frac{2}{1}\)). Since both whole numbers and fractions where the denominator is not zero are considered rational numbers, the result, which is 2, is a rational number.
Therefore, \(-5 + 7\) is rational.