X y 7 2x 3y 11 July 8, 2019 16 32 64 128 X y 7 2x 3y 11 substitution method X y 7 2x 3y 11 elimination method Solve x y 7 2x 3y 11 Solve by cross multiplication method x y 7 and 2x 3y 11 2x y 7 x 3y 11 metodo de igualacion
