Mathematics

5 May, 16:46

Maria solved the equation - 5 x 7/8n = - 12 x 1/4. Her answer was n = 2 x 4/47. 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) = - 12 - 6 (3) = - 13 - 6 (2) = - 13

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