( I think its B but im not really sure..)
Solve the following system of equations by linear combination:
2d + e = 8
d – e = 4

A. The solution is (5, –2).

B. The solution is (4, 0).

C. There is no solution.

D. There are an infinite number of solutions.

Question

( I think its B but im not really sure..)
Solve the following system of equations by linear combination:
2d + e = 8
 d – e = 4

A. The solution is (5, –2).

B. The solution is (4, 0). 

C. There is no solution. 

D. There are an infinite number of solutions.

phi · Answer

I would add the two equations:  left side plus left side =  right side + right side