Step-by-step explanation:
[tex]y=2x-1 \: \: \: \: \: \: \: ..(1) \\
2x+y=3 \: \: \: \: \: \: \:...(2) \: \: \: \: \: \: (given)[/tex]
put equation 1 in equation 2
[tex]
2x+2x - 1=3 \\ 4x = 4 \\ x = \frac{4}{4} = 1 \\ \\ x = 1 \\ \\ [/tex]
[tex]
2(1)+y=3 \\ 2 + y = 3 \\ y = 3 - 2 \\ y = 1[/tex]
