Correct option is A
Given x + y = 8 and 2x + y = 10
By subtracting equation (1) from equation (2), we can eliminate y.
(2x+y)−(x+y)=10−8
2x+y−x−y=2
x = 2
Now, substitute x=2 into the first equation to find y.
2+y=8
y=6