Answer:
i think its b but im sorry if im wrong
Step-by-step explanation:
I believe the answer to your question would be x = -y + 2
MLN is an isosceles triangle
ML = MN
3x = x + 8
Subtract x from both sides
2x = 8
Divide both sides by 2
x = 4
MN = 4 + 8 = 12
Answer
A. 12
The answer is 2
-3(2x+7)=-6x-21