The equation 2x + 5y = 7 has a unique solution, if x, y are:
A. Rational numbers
B. Real numbers
C. Natural numbers
D. Positive real numbers
Answer:C
The equation 2x + 5y = 7 has a unique solution, if x, y are:
A. Rational numbers B. Real numbers C. Natural numbers D. Positive real numbers
Explanation: The equation 2x + 5y = 7 has a unique solution, if x, y are natural numbers.