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7+7+7+7+7+7+7+7+7=63
depends ...... a. 7(-3) means 7 times (negative 3) b. (-1) negative # c. -(9) the opposite of nine
49 ÷ 7 = 7. Therefore, the answer is 7 x 7 = 49
nine eighteenths is one half. Half of 6/7 must be 3/7
Call the unknown number n. Then, from the problem statement, 9n - 7 = 38, or 9n = 45, or n = 5.