If town A had 35 people, 12 left, 13 joined, 39 joined, 25 got killed, how many people were there left?
1 answer:
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For this case we have the following system of equations:
Substituting the second equation into the first we have:
The equality is not fulfilled, therefore the system has no solution.
The lines do not intersect.
Answer:
The system has no solution.