637 + 156 + 9684 = 10477
637 + 186 + 9654 = 10477
657 + 136 + 9684 = 10477
657 + 186 + 9634 = 10477
687 + 136 + 9654 = 10477
687 + 156 + 9634 = 10477
The number of solutions are 6 in number.
How many solutions are there to satisfy the equation: ABC+BCD=CBA where each letter represents one digit?
If a, b, and c are distinct numbers, how many solutions are there to the following equation?
How many integer solutions are there to the system of equations below and which are those solutions?
x^2+y-z = 42 x+y^2-z = 18
Add together three of the following numbers to score 42.
8 10 12 14 20
Each number can be used as many times as you wish.
How many different combinations are there?