Answer:
Explanation:
in order to simplify this equation we are going to have to subtract 12c from 20c, 22r from 15r, 65p from 75p, and 70e from 50e:
20c - 12c = 8c
15r - 22r = -7r
75p - 65p = 10p
70e - 50e = -20e
Now we are going to put all the answers into the equation again:
8c + (-7r) + 10p + (-20e)