WY + W'YZ' + WXZ + W'XY' = WY + W'XZ' + X'YZ' + XY'Z

So far ive got W(Y + XZ) + W'(YZ' + XY') on the left side but im not sure thats correct

Also other equations ive solved with the help of the internet that I would really appreciate if you guys could check over:

X'Y' + X'Y + XY = X' + Y

X'Y' + (X'Y + X'Y) + XY

(X'Y' + X'Y) + (X'Y + XY)

X'(Y' + Y) + (X' + X)Y

X'(1) + (1)Y

X' + Y

(XY')'

ABC' + BC'D' + BC + C'D = B + C'D

ABC' + BC' + BC + C'D

B(AC' + C' + C) + C'D

B(AC' + 1) + C'D

B(1) + C'D

B + C'D