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13 August, 15:50

Solve by using any method of substitution

4 + 8x = y

6x - y = 2

+3
Answers (1)
  1. 13 August, 19:36
    0
    (-3,-20)

    Step-by-step explanation:

    4 + 8x = y ... equation (1)

    6x - y = 2 ... equation (2)

    from equation 2

    6x - y = 2

    6x - (4+8x) = 2

    6x - 4 + 8x = 2

    +4 + 4

    6x - 8x = 6

    -2x=6

    divide by - 2

    x = - 3

    put x in equation (1) to solve for y

    4 + 8x = y

    4+8 (-3) = y

    4-24=y

    -20=y

    y = - 20

    solution = (-3,-20)
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