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Math problem help? saw this on my test didnt know how to solve this?

x=6y5x

y=8x3y

how would i solve this by substitution?

1 Answer

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  • 8 years ago
    Favorite Answer

    solve x = 6y5x for y by dividing both sides by x

    so 1 = 30y --> y = 1/30

    then substitute this value in either equation to obtain x = 1/16

    in doing this we are assuming that x,y are not equal to zero

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