tianab227 tianab227 21-12-2020 Mathematics contestada I have 3 questions. Please number the answers. #1: What is the expression (3x - 5) + (-4x + 1) simplified? #2: What is the expression 6(-2.1k - 2) + (7k +5) simplified? #3: What is the expression (2m + 7) - (3 - 4m) simplified?