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27 June, 23:22

How do I solve 4x+8y=20 - 4x+2y=-30

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  1. 28 June, 00:12
    0
    i got this

    Step-by-step explanation:

    4x+8y=20 minus 4x both sides but dont minus

    -4x - 4x

    8y=20-4x divide to get y alone

    8 8

    y = - 2x+2.5

    know do it to the other side
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