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10 June, 21:45

The difference between two numbers is 12. Four times the larger number is 10 times the smaller number. Write a system of equations

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  1. 11 June, 00:26
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    X-y=12

    4x=10y

    x=12+y

    substitute

    4 (12+y) = 10y

    48+4y=10y

    48=10y-4y

    48=6y

    y=8

    x-8=12

    x=12+8=20

    x=20
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