Answer:
(a) none
Step-by-step explanation:
The given equations are the same except for the right-side constant. In order for there to be any solution, the left-side expression would have to have two values simultaneously. It cannot.
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These equation are described as "inconsistent." There are no solutions.
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Additional comment
Subtracting the second equation from the first gives the result ...
0 = 2 . . . . false
There are no values of the variables x and y that will make this be true.
