Choose a variable, write an equation for each problem and then solve

1. If a number is 11 more than 6 what is the number
2. If 3 less than a number is 10 what is the number
3. If 14 more than a number is 12 what is the number
4. If a number is 5 less than 23 what is the number
5. If a number plus 4 equals two times 6 what is the number
6. If a number minus 10 equals four times 15 what is the number