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algebra 2

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Use substitution to solve the system
3x + 7y = −3 (1)
7x + y = −53 (2)
Find the value of x.

(part 2 of 2)Find the value of y.

  • algebra 2 - ,

    for (2)
    y = -7x - 53

    sub into (1)
    3x + 7(-7x-53) = -3
    3x - 49x - 371 = -3
    -46x = 368
    x = -8

    sub that back into y = .... to get y

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