+0  
 
0
499
1
avatar

7658 = 7 x n 2 + 6 x n 1 + 5 x n 0

 Oct 8, 2015
 #1
avatar
0

7658 = (7 x n 2) + (6 x n 1) + (5 x n 0)

 

Solve for n:
7658 = 20 n

7658 = 20 n is equivalent to 20 n = 7658:
20 n = 7658

Divide both sides of 20 n = 7658 by 20:
(20 n)/20 = 7658/20

20/20 = 1:
n = 7658/20

The gcd of 7658 and 20 is 2, so 7658/20 = (2×3829)/(2×10) = 2/2×3829/10 = 3829/10:
Answer: | 
| n = 3829/10

n=382.9

 Oct 8, 2015

2 Online Users

avatar