1. Add a) 3x?y, -5x?y, -x? y b) a+b-3, b+2a-1 c) 5m-7n, 3n-4m+2, 2m-3mn-5 d) 3x+11+8z and 7x-5 Share with your friends Share 0 Sneha Apar answered this 0 View Full Answer