Question 604222
5^n-3+5^n=(2)(7)(9)(5^11)
5^n(5^-3 +1) = (126)5^11
5^n (1+5^3/5^3) = (126)5^11
5^n = (126/(1+5^3))5^14
5^n = (126/(126))5^14
n= 14
2n = 28