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12 February, 06:16

Determine the best method to solve the system of equations. Then solve the system.

y = - 2x + 2

y = 4x + - 4

+4
Answers (2)
  1. 12 February, 06:28
    0
    Substitution method is the best to solve system of equations with two variables

    x = 1

    y = 0

    Step-by-step explanation:

    -2x + 2 = 4x + (-4)

    -2x + 2x + 2 + 4 = 4x + 2x - 4 + 4

    6 = 6x

    x = 1

    y = - 2 (1) + 2

    or

    y = - 4 (1) - 4

    y = 0
  2. 12 February, 06:36
    0
    x = 1 and y = 0

    Step-by-step explanation:

    y = - 2 x + 2 ... equation number 1

    y = 4 x - 4 ... equation number 2

    substitute equation number 2 in equ. number 1

    4 x - 4 = - 2 x + 2

    4 x + 2 x = 2 + 4

    6 x = 6

    so x = 1

    substitute x = 1 in equation number 2

    Therefore y = (4 * 1) - 4

    y = 4 - 4 = 0

    therefore x = 1 and y = 0
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