9/12 = 15/20
4/9 = 20/n 4n = 9(20) 4n = 180 n = 45
3 + 9 = 12
n + 1/4 = 9/20 n + 5/20 = 9/20 n = 4/20 = 1/5
15 - n when n equals 9 = 6
6n -3=2n+9 6n-2n=9+3 4n=12 n=12/4 n=3
n =33
7*n-n 7*2-2=12 9*2-2=16
Honey, to write 12 times n equals 108, you simply put it as 12n = 108. It's basic math, darling. Just divide both sides by 12 and you'll find out that n equals 9. Easy peasy lemon squeezy!
(N/8)=(12/16) N= (12*8/16) N=6
3n = 15 + 12 = 27, 27/3 = 9 = n
12=n in a d
1*20 = 20 Thus n = 20