273,357 views
23 votes
23 votes
3^2x+1=9^2x-1 solve the equation ​

User Perrie
by
2.7k points

2 Answers

14 votes
14 votes
3*2x+1=9*2x-1
6x+1 = 18x-1
-18x = -18x
-12x +1= -1
-12x -2
-2/-12= 1/6
x=1/6 or 0.16
User Eulanda
by
2.5k points
25 votes
25 votes
9x+1 =81x-1


2 = 72x

X=36
User Maryam Koulaei
by
3.3k points