Translate the following from English phrase to algebraic expression and Vice Versa.

___________11. 4 less than a number

___________12. 4 times a number

___________13. A number divided by 2.

___________14. 6 more than 5 times a number.

___________15. A number increase by 10.

___________16. y+10

___________17. w-12

___________18. 2n

___________19. 3w-5

___________20. 5x+6​