2. \( 2-3 \times 4+(-7) \times 9 \)

Let's break it down step-by-step to solve the expression \( 2-3 \times 4+(-7) \times 9 \). First, perform the multiplications: 1. \( 3 \times 4 = 12 \) 2. \( -7 \times 9 = -63 \) Now substitute those values back into the expression: \( 2 - 12 - 63 \) Next, simplify it from left to right: 1. \( 2 - 12 = -10 \) 2. \( -10 - 63 = -73 \) Thus, the final answer is \( -73 \).