1.(3x+2y)+(5x-y) 2.(2a-b)-(a+b)

1. 3x + 5x + 2y – y = 8x + y
2. 2a – a – b – b = a – 2b

1. 3x + 5x + 2y + (-y)
• 8x -1y
2. 2a – a – b – b
• 1a – 2b