Question

Solve. 20/n+10 = 10/n+20 n = -10 n = -20 n = 30 n = -30

Answer 1

20/n+10 = 10/n+20 n

multiply both side n,

n (20/n+10) = n(10/n+20 n)

20+10n = 10+20n^2

20+10n -20 = 10+20n^2 -20

10n = 20n^2 -10

10n - 10n = 20n^2 -10 -10n

0 = = 20n^2 -10 -10n

20n^2 -10 -10n = 0

n = 1 or n = -0.5

Explanation: