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Original Equation: 4x + 9x = 39 Factor: x(4+9) = 39 Add: x(13) = 39 Divide: x = 3 Check: 4(3) + 9(3) = 12 + 27 = 39 = 39

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โˆ™ 2009-01-28 04:03:44
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Q: Four times a number added to 9 times a number equals 39?
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