acenanny1 acenanny1 31-10-2019 Mathematics contestada 6. In which step is theassociative property ofaddition applied?6 + (5 + 4) + XStep 1: 6+(4+5) + XStep 2: (6 + 4) + 5 + xStep 3: 10 + 5 + xStep 4: 15 + X