Age Problem: How old are they now? Part1 of 2

Diane is 23 years older than her daughter Amy. In 6 years, Diane will be twice as old as Amy. How old are they now?

Fred is 4 years older than Barney. Five years ago, the sum of their ages was 48. How old are they now?

More AGE PROBLEM examples:
1. https://youtu.be/CddRf8vA4nE
2. https://youtu.be/e4rGtc7nASE
3. https://youtu.be/B-jMfhNd4Zs
4. https://youtu.be/lWHIEdih-uU
5. https://youtu.be/7WkT-daQs5E
6. https://youtu.be/7MQgwNKxwWQ
7. https://youtu.be/5yorS60wRw0
8. https://youtu.be/ffswkdmFpAw
9. https://youtu.be/tiwb58Ffd0M
10. https://youtu.be/bXYz0q5FKHM
11. https://youtu.be/fJad87XGrNw
12. https://youtu.be/BgeVG6rFqOw
13. https://youtu.be/PKAFLpU23Cw
14. https://youtu.be/KXy8svt_6z0
15. https://youtu.be/5jBJbBeDBFc
16. https://youtu.be/n-q7FlYk1vc
17. https://youtu.be/uO-GZXLAPPo
18. https://youtu.be/DpQQ8M2oElM
19. https://youtu.be/9XxhqyO67e0
20. https://youtu.be/MiQZutyVbwU

Видео Age Problem: How old are they now? Part1 of 2 канала SolvingMath with Leonalyn