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3 September, 05:50

Solve the equation

y=2x-4, 3x+y=11

+3
Answers (2)
  1. 3 September, 08:42
    0
    Step-by-step explanation:

    this system not equation:

    y=2x-4 ... (1)

    3x+y=11 ... (2)

    put the value of y by (1) in to (2):

    3x+2x-4 = 11

    add4 : 3x+2x = 15

    5x=15

    x=15/5 = 3

    but: y = 2x-4

    so : y = 2 (3) - 4

    y = 6-4=2
  2. 3 September, 09:39
    0
    (3, 2)

    Step-by-step explanation:

    Given the 2 equations

    y = 2x - 4 → (1)

    3x + y = 11 → (2)

    Substitute y = 2x - 4 into (2)

    3x + 2x - 4 = 11

    5x - 4 = 11 (add 4 to both sides)

    5x = 15 (divide both sides by 5)

    x = 3

    Substitute x = 3 into (1) for corresponding value of y

    y = (2 * 3) - 4 = 6 - 4 = 2

    Solution is (3, 2)
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