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20 February, 03:13

For each value of U, determine whether it is a solution,

u/7 + 1=7

28, yes or no?

-49, yes or no?

42, yes or no?

0, yes or no?

+4
Answers (1)
  1. 20 February, 05:07
    0
    Given u/7 - 1 = 7 and plugging in values for u,

    For u = 28; 28/7 - 1 = 4 - 1 = 3; No

    For u = - 49; - 49/7 - 1 = - 7 - 1 = - 8; No

    For u = 42; 42/7 - 1 = 6 - 1 = 5; No

    For u = 0; 0/7 - 1 = - 1; No

    Another way to find out which value would be a solution to u/7 - 1 = 7 is to solve for u.

    u/7 - 1 = 7

    u/7 = 7 + 1

    u/7 = 8

    u = 8*7

    u = 56

    The only solution to this equation is when u = 56.
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