Problem: The solution of the equations 2x−3y=74x−6y=20 is:
Answer Choices:
A. x=18y=12
B. x=0y=0
C. There is no solution
D. There is an unlimited number of solutions
E. x=8y=5
Solution:
The system is inconsistent; hence, no solution;
or
graphically, we have two parallel lines;
or
∣∣∣∣∣2−34−6∣∣∣∣∣=0
hence no solution.