Answer:
[tex]x=4,\ y=-2[/tex]
Step-by-step explanation:
You can use substitution method in two ways.
1 way: From the first equation [tex]2x=8[/tex] you can express x by dividing the whole equation by 2:
[tex]x=4[/tex]
and substitute this x-value into the second equation:
[tex]4+y=2,\\y=2-4,\\y=-2.[/tex]
2 way: From the second equation you can express x:
[tex]x=2-y[/tex]
and substitute it into the first one:
[tex]2(2-y)=8,\\4-2y=8,\\-2y=8-4,\\-2y=4,\\2y=-4,\\y=-2.[/tex]
