I cannot solve the equation. √(7d+1)-4=11

Question

I cannot solve the equation.
√(7d+1)-4=11

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Diễm Kiều 7 hours 2021-07-22T09:36:51+00:00 2 Answers 0 views 0

Answers ( )

    0
    2021-07-22T09:38:11+00:00

    9514 1404 393

    Answer:

      d = 32

    Step-by-step explanation:

    Add 4, then square, and solve the resulting linear equation.

      √(7d +1) = 15

      7d +1 = 225 . . . . . . square both sides

      7d = 224 . . . . . . . . subtract 1

      d = 32 . . . . . . . . . . divide by 7

    0
    2021-07-22T09:38:12+00:00

    Answer:

    I believe the answer is  d
    =
    32

    Step-by-step explanation:

    You should isolate the radical, then raise each side of the equation to the power of its index.

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