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John Thompson · Answer 1 · 2021-10-10T13:46:07+0000

Answer:

8c - 7r + 10p - 20e

Explanation:

(20c + 15r + 75p + 50e) - (12c + 22r + 65p + 70e)

(subtract like terms) (aka. 20c - 12c, 15r - 22r, 75p - 65p, 50e - 70e)

8c - 7r + 10p - 20e