Anonymous

Question description

please help me understand this problem: Maria solved the equation -5 n = -9. Her answer was n = 1. She is fairly confident about her answer, but wants to do a quick check of her solution using estimation. Which of the following shows a good check of her answer? 6(2) = -12-5(-2) = -10-5(2) = -9-5(2) = -10

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