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18 March, 21:37

2x - y = 3

y = - x

What's the value of x?

+3
Answers (2)
  1. 18 March, 22:00
    0
    These are simultaneous equations. They have to be solved like this:

    2x-y=3 - y=3-2x 2x-3 = - x

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

    y=2x-3 x=1

    Step-by-step explanation:

    The value of x equals to 1
  2. 19 March, 00:10
    0
    X = 1 which means Y = - 1

    Step-by-step explanation:

    2x - y = 3

    y = - x

    Sub for y

    2x + x = 3

    Add the x's

    3x = 3

    Divided by 3

    x = 1
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