32
1 plus 30 is 31
1 + 10 + 20 = 31
16 + 15 = 31
The original questions is in parenthesis,71 plus 2 = 10 22 plus 31 =8 111 plus 22 =7(71) 7+1 "plus" 2 (2) = 10, (22) 2+2 (plus) (31) 3+1=8, (111) 1+1+1 "plus" (22) 2+2=7
159 + 31 = 190 1:59 +0:31= 2:30
combine like terms. 3x+1+4x-5=31 3x+4x=7x 7x+1-5=31 1-5=-4 7x-4=31 then solve it 7x=35 x=5
The sum of the numbers given is 31. 1 + 2 + 4 + 8 + ... + 2n = 2n+1 - 1
The mathematical statement 31 plus 31 would have an answer of 62.
18 + 13= 31
31 over 99ths.
1 over 5 plus 3 = 31/5 or 16/15
1/12 + 7/9 = 31/36