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3^2x+1=9^2x-1 solve the equation ​
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2 votes
3^2x+1=9^2x-1 solve the equation ​

User Xiangrui Li
by
5.8k points

2 Answers

1 vote
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 Salahudin
by
5.2k points
5 votes
9x+1 =81x-1


2 = 72x

X=36
User Amado Saladino
by
5.1k points
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