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15 May, 20:30

How many solutions does 5x + 4y = 6 10x - 2y = 7 have

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  1. 15 May, 21:00
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    Step-by-step explanation:

    5x + 4y = 6

    4y = - 5x + 6

    y = - 5/4x + 24 ... slope here is - 5/4 and y int is 24

    10x - 2y = 7

    -2y = - 10x + 7

    y = 5x - 7/2 ... slope here is 5 and y int is - 7/2

    if the slopes and the y int's are different, which they are, then there is 1 solution
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