Matching Pairs SEL SustituciónOnline version Aprendizaje significativo by Mayling Rodriguez 1 (1, 4) 2 x-2y=0; x-y=12 3 x+y=7; 5x-2y=-7 4 x-y=2; -3x+5y=0 5 x+y=48; x-3y=4 6 4x+y=8; 2x-2y=-6 (1, 6) (0, 3) (1, 4) (5, 3) (24, 12) (37, 11)