2x 3y 10 x y 5 July 8, 2019 16 32 64 128 2x 3y 10 xy =- 5 X 3y 10 2x y 5 solve by substitution method Elimination method class 10 x y 5 2x 3y 4 X y 5 and 2x 3y 10 substitution method