65 i think
15 + 13 + 11 = 39
77
15
3 + 11 + 11 + 11 + 12 + 13 + 15 + 15 + 16 + 17 + 19 = 143
39
136
9 15+39=54 54/6=9
If: 7x+11y+13z = 15 Then: 7(15/21)+11(15/33)+13(15/39) = 15 because 5+5+5 =15 So it follows: 7(15/21)*11(15/33)*13(15/39) = 125 because 5*5*5 = 125 Therefore: x = 15/21 y = 15/33 and z = 15/39 Or as: x = 5/7 y = 5/11 and z = 5/13
x + 15 = 54x = 54 - 15 = 39ANSWER: 39
39-15+18 6x3 Answer: 25
25 + 15 + 21 + 10 + 11 = 82
9 plus 11 (20) plus 15 (35) plus 18 is equal to 53