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    misspolo2010's Avatar
    misspolo2010 Posts: 1, Reputation: 1
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    #1

    Aug 5, 2011, 06:09 AM
    what is the answer to this problem -2/5y=-14/15 using multiplication principle
    using the multiplication principle how to solve this problem -2/5y=-14/15
    taxesforaliens's Avatar
    taxesforaliens Posts: 649, Reputation: 117
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    #2

    Aug 5, 2011, 08:03 AM
    Multiplication principle:
    Multiplying (or dividing) the same non-zero number to both sides of an equation does not change its solution set.

    So you need to multiply/divide in a way that you have the y alone on one side.

    Example:
    5*x=20
    if you multiply with 1/5 you get:
    1/5*5*x=1/5*20
    <=> x=4
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