How many "x's" in a "z"

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If the following statements are true, how many "x's" are there in a "z"?

x + x = y

y + y + x = a

a + y = z

Comments

  1. Rithvik10 March 2022 at 19:15

    If x + x = y, we can tell that 2x = y
    From this, we can substitute it into our next equation
    This will give us
    2x + 2x + x = a
    This means that 5x = a
    Now we can substitute both 5x = a and 2x = y into our third and final equation
    This will give us:
    5x + 2x = z
    This gives us an answer of 7x's in a z

    ReplyDelete

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