Please help, how to solve this, TY

winthropA:

(x,y): y = 2x + 1 y = x/2 + 4

I think -x/2+y=4
-2x=-1 therefore you multiply one of those with -1 so as to make y vanish. => x/2=-4
-2x=-1
so x=10/3 and y =17/3 i dont know if that's what you asked for but it's better than nothing

(x,y): y = 2x + 1 y = x/2 + 4

Since y equals both those expressions it is easiest just to say

2x+1 = x/2 +4

then multiply both sides by 2 to get rid of the fraction
and I am hoping you can do it from there.

When you get your answer, plug the numbers back into the original equations to check that they are correct.