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9 May, 02:59

Solve the system by substitution 5x+3y=8 3x+y=8

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  1. 9 May, 03:01
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    3x+y=8

    y=8-3x

    5x+3 (8-3x) = 8

    5x+24-9x=8

    -4x+24=8

    -4x=-16

    x=4

    5x+3y=8

    5 (4) + 3y=8

    20+3y=8

    3y=-12

    Y=-4

    5x+3y=8

    5 (4) + 3 (-4) = 8

    20+-12=8

    8=8
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