Nerissalubricago Nerissalubricago Math Answered 2b-4+ (5 - 2b) + (2-3b)-b = III. FIRST GIVE THE SUM OF TWO EXPRESSIONS. THEN, SUBTRACT THE SEC FIRST EXPRESSIONS: 1. 0.3abc; 1.2abc 2. 6x?; -7x2 3. 5(a + 2); -6(a +2) 4. lxy; -% xy 5. Syz; -14yz -