add 15a + 12b - 6c - 24 and 18- 14c - 6b- 3a
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Answer:
12a+6b-20c-6
Step-by-step explanation:
15a+12b-6c-24+(18-14c-6b-3a)
15a+12b-6c-24+18-14c-6b-3a
15a-3a+12b-6b-6c-14c-24+18
12a+6b-20c-6
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