Add: 4abc-3bc +6ac , -7abc-6bc+9ac, 3abc +2bc
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Answer:
-7bc + 15ac
Step-by-step explanation:
4abc-3bc +6ac + -7abc-6bc+9ac + 3abc +2bc
4abc - 7abc + 3abc - 3bc - 6bc + 2bc + 6ac + 9ac (Group all the like terms togerther)
-7bc + 15ac
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