10 x y 2 xy 4 15 x y July 8, 2019 16 32 64 128 10 x y 2 xy 4 15 x y 5 xy 10 x y 2 xy 4 15 x y 9 xy 10 x y 2 xy 4 15 x y 5 xy =- 2 teachoo 10 x y 2 xy 4 15 x y 5 xy =- 2 by elimination method 10 x y 2 xy 4 15 x y 5 xy =- 2 by substitution method 10 x y 2 xy 4 15 x y 5 xy =- 2 by cross multiplication Solve 10 x y 2 xy 4 15 x y 5 xy =- 2
