Question

What is the solution to the system of equations?

{x=5
y=2x−1

A. (5, 9)
B. (9, 5)
C. (5, 11)
D. (11, 5)

Answer 1

The correct solution would be A

Answer 2

A. (5, 9)

Explanation:

The first equation tells you x=5, so the only viable choices are A and C.

The second equation tells you ...

y = 2·5 -1 = 10-1 = 9

so the only viable choice is A.

(x, y) = (5, 9) . . . . . matches choice A