SOLUTION: solve: sqrt (r - 1) + 5 = 2 a) (10) b) (8) c) (50) d) none or 0

Algebra ->  Radicals -> SOLUTION: solve: sqrt (r - 1) + 5 = 2 a) (10) b) (8) c) (50) d) none or 0      Log On


   

Question 317575: solve: sqrt (r - 1) + 5 = 2
a) (10)
b) (8)
c) (50)
d) none or 0
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
sqrt (r - 1) + 5 = 2
sqrt(r-1)=2-5
sqrt(r-1)=-3 square both sides.
r-1=9
r=9+1
r=10 ans. A)