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8 November, 11:42

Equation M: y = x + 4

Equation P: y = 3x + 6

Which of the following is a step that can be used to find the solution to the set of equations?

x = 3x + 6

x + 4 = 3x + 6

x + 6 = 3x + 4

x = 3x

+3
Answers (1)
  1. 8 November, 12:11
    0
    Solve the system

    y = x + 4

    y = 3x + 6

    Note that both equations have been solved for y. Thus, you can set y = y, or

    x+4=3x+6. Simplifying, - 2 = 2x, or x = - 1.

    Another way to look at this would be x + 4 = 3x + 6.
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