7 + 5 + 4 ÷ 2 + 7 = 21
-12
It doesn't ! -7 plus -5 equals -12 ! -7 plus 5 equals -2
18(7) + 5 = 131
72 is.
It is 5*7*4 = 140
5 + 2 + 3 + 7 + (21/7) = 20
5 plus the product of 7 and n.
2+5=7 5+2=7 2+5=5+2
2+5 = 7 7 + 125 = 132.
7 plus neagtive 5 = 2
If you put the numbers in order it is: 0, 0, 1, 2, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 6, 6, 7, 7, 7, 7, 8, 9. Since there are 25 numbers, we are looking for the thirteenth number, which is 5.