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Today, 07:30

Solve the system of equations:

y = x-4

-2x + y = 18

+1
Answers (1)
  1. Today, 08:58
    0
    x = 7.3

    Step-by-step explanation:

    -2x + x-4 = 18

    First, Combine Like Terms

    -3x + (-4) = 18

    Then, do Inverse Operations

    -3x + - 4 = 18

    + 4 + 4

    Cancel out the - 4 + 4 because it will equal zero and won't matter to the equation

    -3x = 22

    Do Inverse Operations again. In this case, you will divide.

    -3x = 22

    -3x/-3 = 22/-3

    Cancel out the - 3x/-3

    22/-3 = x

    7.3 = x
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