## anonymous 5 years ago Which of the following is a solution to 5√x - 7 = 10 ?

1. Hero

5√(x - 7) = 10 √(x - 7) = 10/5 √(x - 7) = 2 x - 7 = 4 x = 4 + 7 x = 11

2. Hero

I'm pretty sure my solution is correct.

3. anonymous

5√x - 7 = 10 5√x = 10 + 7 = 17 5√x = 17 √x = 17/5 = 3.4 x = (3.4)square = 11.56 i hope ur question syntax is fine. do tell me when you have the answer.

4. Hero

sigh

5. Hero

x = 11 is the solution. Original poster just forgot to put parentheses

6. anonymous

If you plug in 29/4, you get 2.5, not 10..

7. anonymous

The OP used $5\sqrt{x-7}=10$ Not $5\sqrt{x-5}=10$

8. Hero

The original poster awarded me with the medal by the way.

9. anonymous

@Luis Besides, even with your equation, the solution is x=9. @Hero, okay, I just wanted to make sure the the OP had the correct answer. :)