Question

medal and fan!

Answer 1

Choose the equivalent system of linear equations that will produce the same solution as the one given below.

4x − 2y = 6
2x + y = 5

−4x − 2y = 10
−4y = 4
−4x − 5y = −1
−7y = 5
3x + 2y = 6
7x = 12
4x + 2y = 10
8x = 16

Answer 2

Find the solution of the given equation and use the x, y in each the one which doesn't give values what makes no sense is the correct answer.

Answer 3

last one.
the solution to the first system is x=2, y=1. Substituting these values in the other equations yields the answer