SOLUTION: How do you differentiate whether to turn a negative sign into a positive or keeping it the same. For example 12c + 9b - (6c - 7b). It comes out to 6c+16b how do you get +16b?
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Question 491473: How do you differentiate whether to turn a negative sign into a positive or keeping it the same. For example 12c + 9b - (6c - 7b). It comes out to 6c+16b how do you get +16b? Answer by rfer(16322) (Show Source):
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