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21 May, 14:52

Solve for u.

-3 = - 1/u+1

+1
Answers (2)
  1. 21 May, 15:14
    0
    -2/3

    Step-by-step explanation:

    multiply each side by u + 1 to get it out of the denominator

    -3 (u + 1) = - 1

    now use distributive property

    -3u - 3 = - 1

    add the 3 to move it over

    -3u = 2

    now divide by - 3

    u = - 2/3
  2. 21 May, 17:50
    0
    u = - 2/3

    Step-by-step explanation:

    -3 = - 1 / (u+1)

    Multiply each side by (u+1)

    -3 * (u+1) = - 1 / (u+1) * (u+1)

    -3 (u+1) = - 1

    Distribute

    -3u - 3 = - 1

    Add 3 to each side

    -3u - 3+3 = - 1+3

    -3u = 2

    Divide each side by - 3

    -3u/-3 = 2/-3

    u = - 2/3
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