Question

3n=30+3n(n-4) Find n. .-.​

Answer 1

Answer and Step-by-step explanation:

6n = 30 + 3(n - 4)

6n = 30 + 3n - 12

6n = 18 + 3n

-3n -3n

3n = 18

`(3n)/(3) = (18)/(3)`

n = 6

Answer 2

n=6

Explanation:

6n= 30+3(n-4)

6n=30+3n-12

6n-3n=30-12

3n=18

n=18/3

n=6