Writing two step expressions and equations. 19. six less than twice a number x is four
20. four more than the product of 2 and a
21. Nine times a number decreased by four
22. two less than the quotient of 15 and a number
23. five times the sum of six and some number
24. the quotient of 7my and d decreased by 9
25.twice the difference of y and three
26. the difference of 9 and the quotient of s and -4
27. the sum of 5 and product of 7 and x
28. three more than quotient of 5 and a
29. the product of 4 and the difference of x and 3
30. the product of the difference of x and 3 and 4