Answer:
(Their all down there)
Explanation:
Okie dokie so! Your answer for 17 is technically correct but you need to imply it further so it would be

18.

do distributive property
combine like terms (12 and -1)

19.

do distributive property
combine like terms (-30 and 1)

20.

do distributive property
combine like terms (10n and -5n)

21.

do distributive property
-
combine like terms (-56x and -6x)

22.

do distributive property
combine like terms (-54 and 5)
