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27 November, 06:17

Solve the system of equations.

2x + 3y = 1

y = 3x + 15

+1
Answers (1)
  1. 27 November, 08:24
    0
    Since y=3x+15

    sub 3x+15 for y in other equation

    2x+3 (3x+15) = 1

    2x+9x+45=1

    minus 45

    11x=-44

    divide 11

    x=-4

    sub

    y=3x+15

    y=3 (-4) + 15

    y=-12+15

    y=3

    (-4,3)
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