Answer:
X= 0 Y = 7.5
Explanation:
-5 X-2 Y = -14----------(1) ×3
-7 X+3 Y= 21----------(2) ×2
-15X - 6Y = -42---------(4)
-14X + 6Y= 42----------(5)
subtracting we're got
- X = 0
counciling out the negative signs
X = 0
put X into equation (1)
-5(0) -2Y = -14
0 - 2Y = -15
-2Y = -15
Y = 15/2
Y = 7.5