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19 February, 07:47

Solve the following equations:

a:45-3x=18x b: 3x+2/5 = 31 c: 2z-3/5 - z-6/4 = 3

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  1. 19 February, 07:54
    0
    A) 45 - 3x = 18x

    + 3x

    45 = 21x

    /21

    2 1/7 = x

    B) 3x + 2/5 = 31

    -2/5

    3x = 30 3/5

    /3

    x = 10 1/5

    C) 2z - 3/5 - z - 6/4 = 3

    Combine like terms

    z - 2 1/10 = 3

    + 2 1/10

    z = 5 1/10
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