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ten 2 / 9 x 45 = 2 / 9 x 45 / 1 = 2 x 45 / 9 x 1 = 90 / 9 = 10 / 1
9 x 5 5 x 9 15 x 3 3 x 15 1 x 45 45 x 1
Let the number be x: 3x-9 = 45 3x = 45+9 3x = 54 x = 18
9 x 5 = 45
45 is one one multiple of 9; it is 9 X 5.