Answer:
C
Step-by-step explanation:
x + 2y = 6
isolate x through
x = 6-2y . . . (iii)
Substitute equation (iii) in equation (i)
7x - y = 7
7(6 - 2y) - y = 7
42 - 14y - y = 7
42 - 15y = 7
Collecting Like terms
-15y = 7 - 42
-15y = -35
-15y = -35
-15 -15
y = 7
3
y =
[tex]2\frac{1}{3} [/tex]
Substitute y in equation (iii)
x = 6 - 2y
x = 6 - 2 × 7
3
x = 6 - 14
3
x =
[tex]1\frac{2}{3} [/tex]
