Answer:
1. 5ab
2.
[tex] - \frac{3ax}{7} [/tex]
3.
[tex] \frac{3(y - 9)}{5x} [/tex]
4.
[tex] \frac{4xyz}{3xya} [/tex]
5.
[tex] \frac{3x^{2} - x + 2}{x} [/tex]
