A number is 7 more than 5 times another number and their difference is 78 Find the numbers

Question

A number is 7 more than 5 times another number and their difference is 78 Find the numbers

in progress 0
Helga 4 years 2021-08-17T14:52:00+00:00 1 Answers 4 views 0

Answers ( )

  1. thongdat2
    0
    2021-08-17T14:53:46+00:00
    Reply

    Answer:

    n = 95.75

    m = 17.75

    Step-by-step explanation:

    n = one number

    m = another number

    System of Equations:

    n = 7+5m

    n – m = 78

    Substitution Method:

    7+5m – m = 78

    4m + 7 = 78

    4m = 71

    m = 17.75

    n – 17.75 = 78

    n = 95.75

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )