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- Leon 10c + a = 100d
- Julie OP hezuer: 10c+ A =100D
- Leon: the solutions must be integers
- Julie OP hezuer: 1
- Julie OP hezuer: a=10
- Julie OP hezuer: c=0
- Leon: d must be =1 , because if it were 2 or higher, we could not solve the equation, and if it were zero there's also no possible solution.