Answer:
x = -1 , y= 7
Step-by-step explanation:
3х + у = 4 .....equation 1
2x + y= 5 ....equation 2
Solving using linear combination method:
---------------------------------------------------------------
3х + у = 4
-2x - y = -5
-------------------...........Here the y cancels out.
x = -1
if x = -1
2x + y= 5
2(-1) + y = 5
y = 5 + 2
y = 7
