-5Z = 55 What is Z? Pls help

Question

-5Z = 55

What is Z?
Pls help

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Orla Orla 4 years 2021-09-03T08:33:28+00:00 2 Answers 2 views 0

Answers ( )

  1. kimcuc
    0
    2021-09-03T08:34:56+00:00
    Reply

    Answer:

    Z = -11

    Step-by-step explanation:

    When dealing with variables, you want to get it alone so it instantly equals the number.

    Since Z is being multiplied by -5, you’re going to divide -5 because that’s the opposite of multiplying–but you have to do it on both sides, not just the one.

    Note that when you’re dividing or multiplying a negative and positive number, the result with ALWAYS be negative!

                                                     -5Z = 55

                                                      /-5     /-5

                                                       Z =  -11

    Just in case, we’ll plug in -11 for Z and see if it works.

                                                   -5(-11) = 55

    Note again that when you’re multiplying two negatives it cancels out the negative and makes the answer positive!

    Hope this helped 🙂

  2. Doris
    0
    2021-09-03T08:35:13+00:00
    Reply

    Answer:

    z = -11

    Step-by-step explanation:

    -5Z = 55

    to find z, divide each side by -5

    \frac{-5Z}{-5} = \frac{55}{-5}

    z = -11

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