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25 October, 02:14

at barton high school 45 students are taking japanese. This has been increasing at a rate of 3 students per year. the number of students taking german is 108 and has been decreasing at a rate of 4 students per year at these, when will the number of students taking Japanese equal the number of students taking german

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  1. 25 October, 03:20
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    45 + 3x and 108 - 4x

    45 + 3x = 108 - 4x

    3x = 108 - 45 - 4x

    3x = 63 - 4x

    9x = 63

    x = 63/9

    x = 7
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