Following the order of operations (PEMDAS/BODMAS), we calculate the expression: 1. Parentheses: 9495995 - 92948949 = -834529542. Addition/Subtraction: 2884 - 9398885 + (-83452954) = 2884 - 9398885 - 83452954 = -93452955 Therefore, the answer is -93452955