Question

2x + y = 5 x + y = 4 A. x = 1, y = 3 B. x = 1, y = 5 C. x = 3, y = 1 D. x = 9, y = -5

Answer 1

we are given with the system of equations

`2x + y = 5, x + y = 4`

Now we can solve these equations together using substitution method

`image`

Now substitute x=1 in in the second equation we get

`image`