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Math

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How do I solve this using substitution method?
7x+9y=-38
-6x+y=50

  • Math - ,

    solve either equation for x or y and substitute it into the other equation:

    -6x+y = 50
    y = 6x+50
    so,
    7x+9(6x+50) = -38
    7x + 54x + 450 = -38
    61x = -488
    x = -8
    now, use that value in either equation to get y:

    y = 6(-8) + 50 = 2

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