Question

Abby and Hakeem had the same number of CDs. After Abby gave away 23 Cds and Hakeem sold 7 Cds the ratio became 3:4. How many CDs did they all have together?


I can't figure out because ratios have never been something I was good at...

Answer 1

A = H

(A-23)/(H-7) = 3/4

Substitute H for A in the second equation and solve for H. Insert that value into the first equation to solve for A. Add (A-23) and (H-7).

Answer 2

I'm sorry. That was past tense, "did." If so, add A and H.

Answer 3

what does Substitute H for A in the second equation and solve for H. Insert that value into the first equation to solve for A. Add (A-23) and (H-7) mean.