1. $$x=3$$
2. $$x=-3$$
3. $$x=-\frac{3}{5}$$
4. $$x=18$$
5. The number is $$3$$.
6. Each segment will be $$8$$ meters long.
7. There are $$34$$ rabbits and $$66$$ chickens.
8. I have $$60$$ books.
9. Lisa's speed was $$20$$ kilometers per hour.
10. It took Jerry $$1$$ hour to run from home to school.
11. Gary's average speed was $$\frac{480}{7}$$ kilometers per hour.