2m-5-5= -3m +15
2m -10= -3m+15
2m+3m= 15+10
5m= 25
m= 25/5
m=5
The question would help if there were a picture of the problem
however I can say that it should always add up to 180 and subtracted by the interior sum
Answer:
??????????????
Step-by-step explanation:
,nooooooo
