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

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Perrie asked Nov 9, 2022

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23 votes

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

Mathematics
high-school

Perrie asked Nov 9, 2022

by Perrie

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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

Eulanda answered Nov 9, 2022

by Eulanda

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25 votes

9x+1 =81x-1

2 = 72x

X=36

Maryam Koulaei answered Nov 12, 2022

by Maryam Koulaei

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