Answer:
n = 18
Step-by-step explanation:

Cross multiply and simplify

Divide both sides of the equation by 5

Simplify : Cross cancel common factor: 5

Answer:
6
Step-by-step explanation:
divide 450 and 75
Answer
Step-by-step explanation:
b)x=-1,-3
Answer:
2
Step-by-step explanation:
Don't really know how to explain it. OmniCalculator is very helpful.
Hope that this helps!