Answer:
(x,y)(6,-5)
Step-by-step explanation:
given.x+y=1----(1)
2?+y=7----(11)
x+y=1
2x+y=7
x-2x+y-y=1-7
-x=-6
-x/-1=-6/-1
x=6
to substitute "x" from-----1
6+y=1
6-6+y=1-6
y=-5
•
. .(x,y)=(6,-5)
