Ask Question
8 March, 13:17

If m + n = 12 and n = 5, what is m-n? don't know the answer

+4
Answers (2)
  1. 8 March, 15:56
    0
    We need to find m first.

    m+n=12, n=5 (plug in n as 5)

    m+5=12 (subtract both sides by 5)

    m=7

    m-n: we know that m is 7 and n is 5

    7-5=2

    The final answer is 2.
  2. 8 March, 16:30
    0
    2

    Step-by-step explanation:

    If m+n = 12 and we know what n is, then we can substitute n in to solve for m!

    It would look like this:

    m + 5 = 12

    m = 12 - 5

    m = 7

    Next, we plug our numbers in for each variable in the next equation (m-n):

    7 - 5

    =

    2
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “If m + n = 12 and n = 5, what is m-n? don't know the answer ...” in 📙 Mathematics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers