Substitute f = 3 and {= 6 to determine if the two expressions are equivalent. 3(21+5) 61+ 15 Which statements are true? Select the three correct answers. The value of both expressions when { = 3 is 33. The value of both expressions when { = 3 is 23. The value of both expressions when t = 6 is 41. The value of both expressions when { = 6 is 51. The two expressions are equivalent. The two expressions are not equivalent.​