I do not understand this AT ALL. If y'all could explain how to do this to me, that would be EXTREMELY helpful. Thank you!

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  1. 42=18-4v

    It's the same as

    18 - 4v = 42
    Subtract 18 from both sides.

    -4v = 24
    Divide both sides by -4
    v = -6

  2. I assume the instructions were to "solve"

    The quest is to isolate the variable on one side of the equation
    and have everything else on the other side, so ....

    let's add 4v to both sides
    42 + 4v = 18 - 4v + 4v , resulting in the -4v+4v to cancel out
    42 + 4v = 18
    don't like that 42 on the left side, so
    subtract 42 from both sides
    42 + 4v - 42 = 18 - 42 , the 42-42 on the left cancels out
    4v = - 24
    I don't like the 4 in front of the 4v, would prefer to have just "v"
    The 4 is "connected" to 4v by multiplication, so let's divide both sides by 4
    4v/4 = -24/4

    to get: v = -6

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    posted by Reiny
  3. Thank you so much!

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