3a +7b -6c +4 from -3a -7b +6c-4
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Answer:
- 6a -14b + 12c -8
Step-by-step explanation:
- 3a - 7b +6c - 4 - (3a + 7b - 6c +4)
= - 3a - 7b +6c - 4 - 3a - 7b +6c - 4
= -3a - 3a - 7b - 7b + 6c + 6c - 4 - 4
= - 6a -14b + 12c -8
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