Answer:
C
Step-by-step explanation:
Given the 2 equations
2x - y = 10 → (1)
2x - 2y = 4 → (2)
Rearrange (2) expressing 2x in terms of y by adding 2y to both sides
2x = 4 + 2y
Substitute 2x = 4 + 2y into (1)
4 + 2y - y = 10, that is
4 + y = 10 ( subtract 4 from both sides )
y = 6
Substitute y = 6 into either of the 2 equations and solve for x
Using (1)
2x - 6 = 10 ( add 6 to both sides )
2x = 16 ( divide both sides by 2 )
x = 8
Solution is (8, 6 ) → C
