Question

For which system of equations would elimination be the simplest technique to choose?
A. y = 2x and x + 3y = 5
B. 4x + 3y = 6 and 3y = 5
C. x + y = 7 and x - y = 12
D. 3x - 2y = 8 and 4x - 5y = 20

Answer 1

c?

Answer 2

The third one, as it is very easy to add both equations and solve for x, then for y.

Answer 3

B is much simple :)