Answer:
y = - 5 ; x = 6
Step-by-step explanation:
-5y+4x= 49
7y+2x= -23 | × - 2
-5y+4x= 49
-14y - 4x = 46
___________ +
- 5y - 14y + 4x - 4x = 49 + 46
- 19y = 95 | × - 1
19y = - 95
y = - 95 : 19
y = - 5
- 5(-5) + 4x = 49
25 + 4x = 49
4x = 49 - 25
4x = 24
x = 24 : 4
x = 6
