SOLUTION: one eighth of the square root of 7 less than a number is 2. Wht is the number?

Algebra ->  Square-cubic-other-roots -> SOLUTION: one eighth of the square root of 7 less than a number is 2. Wht is the number?      Log On


   

Question 169785: one eighth of the square root of 7 less than a number is 2. Wht is the number?
Found 2 solutions by jojo14344, Alan3354:
Answer by jojo14344(1513) About Me  (Show Source):
You can put this solution on YOUR website!
Let x= number
Via condition: x-%281%2F8%29sqrt%287%29=2
Continuing,
x=2%2B%281%2F8%29sqrt%287%29
x=%2816%2Bsqrt%287%29%29%2F8
Punch in your calculator: sqrt%287%29=2.6457513
x=%2816%2B2.6457513%29%2F8=18.6457513%2F8
highlight%28x=2.3307189%29
Check,
2.3307189-%281%2F8%29%28sqrt%287%29%29=2
2.3307189-0.3307189=2
2=2
thank you,
Jojo

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
one eighth of the square root of 7 less than a number is 2. Wht is the number?
--------------
x+-+sqrt%287%29%2F8+=+2
Or %28x-sqrt%287%29%29%2F8+=+2
Which one is it?