jamylovesdonuts
jamylovesdonuts jamylovesdonuts
  • 02-06-2016
  • Mathematics
contestada

What is the solution of −81=b6 ?
A. b = −486
B. b = −75
C. b = 13.5
D. b = 486

Respuesta :

Jennnyyy
Jennnyyy Jennnyyy
  • 02-06-2016
We have to isolate b to be alone. 
Soooo first we divide both sides by 6

-81 = b6
÷6  = ÷6  The right side cancels out and gets the b alone. While we solve the right side of the equal sign. 
-81 ÷ 6 = -13.5 
So this means we isolated b alone!
b = -13.5 

Our final answer is..
b = -13.5 

:)

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