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math

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Help!

These are fractions, so bear with me:

-5/8 x= -9/10

Solve with the multiplicaation principle. How do I do this? The fractions throw me off every time!!!

  • math -

    I interpret "multiplicaation principle" to mean multiply both sides by the same multiplier,
    I will choose -8/5 (do you see why?)

    (-8/5)(-5/8)x = (-8/5)(-9/10)
    x = 72/50

    I just cross-multiply to get
    -50x = -72
    x = 72/50

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