eliminate one of the variables..
2x + 2y = 28
2x = -2y + 28
8x - 2y= 22
8x = 2y + 22
x = 0.25y + 2.75
combine equations...
-y +14 = 0.25y + 2.75
solve for the variable..
-y - 0.25y = 2.75 - 14
-1.25y = -11.25
y = 9
replace y with 9 in previous equation..
x = -y + 14
x = -9 + 14
x = 5
so y = 9 and x = 5
I hope I did that right good luck!
