Quote:
Originally Posted by Git
Implied, but maybe not obvious that it's more restrictive than that - all four left hand variables muct be integers.
Git
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a, b, c must be also be integers.
One may ask what if x and y are not integers but real numbers,
then we will have an infinite number of solutions:
for each x value there is a y value
and for each y value there is a x value,
which is another way of saying we don't have enough information about x and y from a single equation.