S Serene New member Joined Nov 6, 2008 Messages 1 Nov 6, 2008 #1 11plus 3 times the square root of 7x-9 equals 14 I subtractd 11 from both sides and got 3*sqroot 7x-9 = -3 What do I do now
11plus 3 times the square root of 7x-9 equals 14 I subtractd 11 from both sides and got 3*sqroot 7x-9 = -3 What do I do now
tkhunny Moderator Staff member Joined Apr 12, 2005 Messages 11,325 Nov 6, 2008 #2 Re: Please Help \(\displaystyle 11 + 3 \cdot \sqrt{7x-9}\;=\;14\) \(\displaystyle 3 \cdot \sqrt{7x-9}\;=\;3\) Whoops! You wandered off already. How did you get NEGATIVE 3? Divide by 3. Square. Add 9. Divide by 7. Check your answers.
Re: Please Help \(\displaystyle 11 + 3 \cdot \sqrt{7x-9}\;=\;14\) \(\displaystyle 3 \cdot \sqrt{7x-9}\;=\;3\) Whoops! You wandered off already. How did you get NEGATIVE 3? Divide by 3. Square. Add 9. Divide by 7. Check your answers.