Answer:
x is 2, y is 4
Step-by-step explanation:
[tex]{ \tt{y = 2x - - - (a)}} \\ { \tt{2x + y = 8 - - - (b)}}[/tex]
» Substitute for y in equation (b) with that in equation (a)
[tex]{ \tt{2x + 2x = 8}} \\ { \tt{4x = 8}} \\ { \tt{x = 2}}[/tex]
» Find y
[tex]{ \tt{y = 2 \times 2}} \\ { \tt{y = 4}}[/tex]
