esmeralda58 esmeralda58 01-04-2020 Mathematics contestada 1.X - 3=0 A.4 B.2 C.0 D.3 E.1 2.X - 15=20 A.35 B.45 C.15 D.10 E.5 3.X - 10=90 A.90 B.100 C.110 D.70 E.80 5.X + 7 =20 A.15 B.20 C.13 D.7 E.14