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Anonymous
Doing it step by step:-7 = -3c + 933c = 7 + 933c = 100c= 33 1/3
Wiki User
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It is 7 - 8c.
Multiplying out the brackets it is: 7a+21-ac-3c
It equals 24.
89
144 9+7 = 16 and 9*16 = 144