drzoranvujisic drzoranvujisic

10-07-2021
Mathematics

contestada

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

Respuesta :

DeathPotato DeathPotato

10-07-2021

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.

Answer Link

sqdancefan sqdancefan

10-07-2021

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

Answer Link

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