Answer:
D) ( -6 , -6 ) .
Step-by-step explanation:
Given : 2x – 6y = 24 and –5x + 6y = –6 .
To find : Solve the following system by any method.
Solution : We have given that
2x – 6y = 24 -------(1)
–5x + 6y = –6 ------(2)
______________ ( Adding both equations)
-3x + 0 = 18.
________________
-3x = 18
On dividing by - 3 both sides
x = -6 .
Plugging the value x = -6 in equation 1.
2x - 6y = 24 .
2 ( -6) - 6y = 24.
-12 -6y = 24 .
On adding both sides by 12.
- 6y = 24 +12
-6y = 36
On dividing by -6 both sides.
y = -6 .
Solution ( -6 , -6 ) .
Therefore, D) ( -6 , -6 ) .
