To find AC using the information provided, we consider that CE and AE are segments of AC. The correct equation would represent the relationship:
AC = AE + CE
Given that AE = 99 and CE = 101, you can express this as:
AC = 99 + 101
Thus, the equation that corresponds to this would be:
99 + x = 101
However, from the responses provided, the equation closest to what's needed to find AC, as it involves both segments, is:
99 + x = 101
Therefore, this is the correct response.