Answer:
n+3=5m
Step-by-step explanation:
n+3= 5m
x represents the number that is unknown
3 is the number being added
5 is the sum
#5 ∠RST , Obtuse
#6 ∠XYZ, Right
#7 ∠ABC, Straight
#8 ∠HFG, Acute
#9 ∠JPM, Acute
#10 ∠EDF, Right
Hope this helps :)