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25 September, 03:37

Max practices the piano in the guitar for a total of 150 minutes every day he practices guitar 80 minutes more than he practices the piano how much time does Max been practicing the piano every day

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  1. 25 September, 06:49
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    Eg. x minutes for piano practice, y minutes for guitar practice

    The equation

    x + y = 150 (1st equation)

    y = 80 + x (2nd equation)

    How to solve

    change y to 80 + x in 1st equation

    x + y = 150

    x + 80 + x = 150

    2x + 80 = 150

    2x = 150 - 80

    2x = 70

    x = 70/2

    x = 35

    Max practice the piano 35 minutes everyday
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