Answer:
180 degrees
Step-by-step explanation:
Two angles are supplementary when they add up to 180 degrees. Therefore, the sum of Angle L and M's measures is equal to 180°.
3x+6y=18
then
3x+6y+−6y=18+−6y
next
3x=−6y+18
3x /3 =( −6y+18) /3
answer
x=−2y+6
Answer: A= 36
6+6=12
12+12=24
add 12 and 24=36
