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5 August, 23:08

Solve the system by substitution

y=3x+3

y=2x

+5
Answers (1)
  1. 5 August, 23:17
    0
    {y=3x+3

    {y=2x

    ⇒3x+3=2x / - 2x

    x+3=0 / - 3

    x=-3

    y=2x = 2 * (-3) = - 6

    y=-6

    Solution: (-3; - 6)
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