Question

(12n+17/3n+1) - 2n+15/n+7 = 3 1/5

Answer 1

Answer:

n = 3

Step-by-step explanation:

12n + 17/3n+1 - 2n + 15/n+7 = 16/5

[(12n + 17)(n+7) -(2n + 15)(3n+1)]/(3n+1)(n+7) = 16/5

12n^2 + 101n + 119 - (6n^2 + 47n + 15)/3n^2+22n+7 = 16/5

12n^2 + 101n + 119 - 6n^2 - 47n - 15 = 16/5(3n^2 + 22n + 7)

Then, refer to this solution below from Wolfram Alpha: