12 plus 9 equals 21.
9 divided by 9 equals 1, and 3 times 12 equals 36. 1 plus 36 equals 37.
x=-24
A + 9 = 21 A = 21 - 9 A = 12
do you mean what is 3+6+9-12? The answer is 6: 3+6=9 9+9=18 18-12=6 :)
12 plus 9 equals 21.
27
12 + 16 + 18 + 20 + 9 = 75
-5x + x + 9 = -4x + 12 -4x + 9 = -4x + 12 9 = 12 This equation has no solution.
9 divided by 9 equals 1, and 3 times 12 equals 36. 1 plus 36 equals 37.
x=-24
A + 9 = 21 A = 21 - 9 A = 12
3 + 9 = 12
do you mean what is 3+6+9-12? The answer is 6: 3+6=9 9+9=18 18-12=6 :)
-9
3
29 (unspecified units) + 9 cm