Ask Question
20 July, 22:43

John is four years older than frank the sum of their ages is 36. Write an equation

+5
Answers (2)
  1. 20 July, 23:32
    0
    J = johns age

    f = franks age

    in order to solve this you need a system of equations.

    j = f + 4

    j + f = 36

    we know j = f + 4 so we can just substitute j in the second equation with f = 4 to get a new equation of

    f + 4 + f = 36

    which simplifies into

    2f + 4 = 36.

    now we subtract 4 from both sides

    2f = 32

    and divide 2 to both sides

    f = 16

    so franks age is 16.

    what about johns age?

    well we know frank is 16 and johns age is 4 greater than that from the equation j = f + 4

    so just plug in

    j = 16 + 4

    which simplifies to

    j = 20

    so john is 20 years old and frank is 16 years old.
  2. 20 July, 23:47
    0
    4+_=36 that's an easy equation you can use
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “John is four years older than frank the sum of their ages is 36. Write an equation ...” 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