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13 December, 23:27

What is the value of x in the equation 7x + 2y = 48, when y = 3?

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Answers (2)
  1. 13 December, 23:57
    0
    7x+2y=48

    y=3,

    7x+2 (3) = 48

    7x+6=48

    7x=42

    x=6
  2. 14 December, 00:25
    0
    Hi!

    7x+2y = 48

    You know the value for y so you just need to plug it in.

    7x+2*3 = 48

    7x = 48-6 = 42

    x = 6
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