Question

make n the subject of the formula: A = 5mn + pn

Answer 1

first divide throughout by n

Answer 2

so A=5mn+pn
A/n=5mn/n+pn/n
A/n=5m+p

Answer 3

then divide throughout by A
so A/n /A =(5m+p)/A
1/n=(5m+p)/A

Answer 4

then 1 divided by 1/n = 1 divided by (5m+p)/A
so n=A/(5m+p)

Answer 5

thank you !!!

Answer 6

welcome