Answer:
x= -7, y= 12
Step-by-step explanation:
To find the value of x and y, first label the 2 equations.
2x +y= -2 -----(1)
x +y= 5 -----(2)
(1) -(2):
2x +y -(x +y)= -2 -5
2x +y -x -y= -7 (expand bracket)
x= -7
subst. x= -7 into (2):
-7 +y= 5
y= 5 +7 (+7 on both sides)
y= 12
