Question

Emelia discovered that if she takes three-fourths of her age and adds 9, it produces the same result as when she takes one-fourth of her age and adds 21. How old is Emelia?

Answer 1

I have the equation for this as:
\[\frac{ 3 }{ 4 }x+9=\frac{ 1 }{ 4 }x+21\]

Answer 2

Did you try subtracting 9 on both sides and going from there?

Answer 3

I did try but then I had 3/4x left. I didn't know how to isolate x with that.

Answer 4

Divide by 3/4 on both sides. Right?

Answer 5

Wait... I want to show you what I did so that you can catch the mistake. Is that okay?

Answer 6

Ok.