DNA created RNA, RNA creates proteins, proteins goes on to form (what)

try using substitution:

x + y - 6 = x - y. (i'm not giving you the exact answer). since 0 = x - y, then sub 0 in the equation with x - y. combine your like terms, and then use inverse operations, and you'll have your answer.

: -)

it's not c. i took the quiz and got it wrong. so my best guess is b.

have a great day, and hope this .