plz help with math?

Question

m/n+5m=20 search for m
s/2t is 10 for t

Answer 1

m/n + 5m = 20

Multiply both sides by n:
m + 5mn = 20n

Factor out m:
m*(1+5n) = 20n

Dividing by (1+5n):
m = (20n)/(1+5n)



s/2t = 10

Multiply by 2t:
s = 20t

Divide by 20:
t = s/20

Answer 2

Use distributive property to isolate m:
m(1/n + 5) = 20

Then divide both sides by (1/n + 5): m = 20/(1/n + 5)


Example 2: make it 10/1 and cross multiply to get 20t = 1s, then divide both sides by 20