Solve the following problems.
1. Twice a number increased by 4 is 24. Find the
number.

2. Twenty six is equal to thrice a number increased by 5.
Find the number.

3. The sum of four times a number and twelve is 32.
Find the number.

4. The difference between nine times a number and
16 is 20. Find the number.

5. If six times a number is added to 33, the result is 75.
Find the number.