Answer:
(x,y) (1,1)
Step-by-step explanation:
3(x+1)-(y+7)=-2
x=9/4-5/4y
3(9/4-5/4y+1)-(y+7)=-2
3(13/4-5/4y)-y-z=-2
39/4-15/4y-y-7=-2
11/4-19/4y=-2
11-19y=-8
-19y=-8-11
-19y=-19
y=1
x=9/4-5/4×1
x=1
(x,y) (1,1)
check if given ordered pair is the solution of the system
3(1,1)-(1+7)=-2
4×1+5(1-3)=-6
-2=-2
-6=-6
since both equations hold, the ordered pair is the solution of the system
so
(x,y) (1,1)
