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30 October, 22:18

Solve the following system:

Y = x - 2

2x + y = 5

+5
Answers (1)
  1. 31 October, 00:57
    0
    x = 7/3

    y = 1/3

    Step-by-step explanation:

    y = x - 2 ... (1)

    2x + y = 5 ... (2)

    Rearranging equation (2), we have

    y = - 2x + 5 ... (3)

    Let's multiply equation (1) by 2 so that we can easily simplify by substitution.

    Therefore, it becomes 2y = 2x - 4 ... (4)

    We add equation (3) and (4)

    3y = 1

    y = 1/3

    Now, substitute (y = 1/3) in equation 1

    It becomes:

    1/3 = x - 2

    x = 1/3 + 2

    Simplifying with a LCM of 3

    x = (1 plus 6, all over 3)

    = 1+6 / 3

    = 7/3
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