Question 2Which expression keeps its result when every $7$ is replaced by the same other integer, with division defined?$\frac{7 + 7}{7} + 7$$7 \frac{7 + 7}{7}$$7 + 7 - 7 + 7$$\left(7 + 7 - 7\right) 7$$\frac{7 + 7 - 7}{7}$