Please open link and answer fully thanks httpsiimgurcomyb8id

Please open link and answer fully, thanks!

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Solve the given system of equations.

2x - y =1

5x +4y = 22

solve by elemination

Multipy equation 1 by 5 and equation 2 by 2:

10x - 5y = 5

10x +8y = 44

------------------- (subtract)

-13y = -39

y = 3

2x -y =1

so, x = (1+y/2 = ( 1 +3)/2 = 2

system has unique solution

Solution : ( 2 , 3 ) Option A