2x - 2y = 6 ---- eq (i)
4x + 2y = 18 -------- eq (ii)
ADDING the 2 equations ELIMINATES y. Solve for x to get its value.
Substitute the value of x in any of the 2 equations to get the value of y.
"Answer and show your work." Are you serious? Whose job do you think that is?
You've been given instructions, now do the REST!!