Answer:
x = 0
y = 5
Step-by-step explanation:
-3x + 4y = 20 -------------(i)
6x + 3y = 15 --------------(ii)
(i) * 2 - 6x + 8y = 40
(ii) 6x + 3y = 15 (Now add, x will be eliminated}
11y = 55
y = 55/11
y = 5
Plug in y =5 in equation (i)
-3x + 4*5 = 20
-3x + 20 = 20
-3x = 20 - 20
-3x = 0
x = 0
