Maths

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Solve the following equations
4x – 3 = 3x + y = 2y + 5x – 12

  • Maths -

    from 4x – 3 = 3x + y
    y = x - 3 **

    plug ** into 3x + y = 2y + 5x – 12

    3x + x-3 = 2(x-3) + 5x - 12
    4x - 3 = 2x - 6 + 5x - 12
    4x-3 = 7x - 18
    -3x = -15
    x = 5
    then y = 5-3 = 2

  • Maths -

    Thanks

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