I have gotten this expression from truth table.

Y=A’B’C’ + A’B’C + A’BC + AB’C + ABC

and I gotten the simplistic form with k map as Y = C + A’B’

but when I try using Boolean, I just can’t get it. I am bad at algebra so someone please advice me where i am wrong and how and why.

Y=A’B’C’ + A’B’C + A’BC + AB’C + ABC

Y = A’B’(C’+C) + BC(A’+A) + AB’C

Y = A’B’ + BC + AB’C

Y = A’B’ + C(B+AB’)

Y = A’B’ + C(B+A)

Y = A’B’ + CB + AC

can’ seems to simply anymore.

Where am I wrong?