Someone i'm stuck : ) simplify the following expression: (7x + y) − (5x + 2y). if the final answer is written in the form ax + by, what is the value of b? answer - simplify the following expression: (2x + 4y) − (4x − 2y). if the final answer is written in the form ax + by, what is the value of a? answer- simplify the following expression: (7x + y) − (4x − 3y). if the final answer is written in the form ax + by, what is the value of a? answer-