Question

Solve for x: 81^-2 ÷ 729^1-x = 9^2x

Answer 1

=> 1/81^2 / 729^1-x=9^2x

=> 1/1^2 / 9^1-x=9^2x

=> 1 / 1-x=2x

do cross multiply

=> 1-x * 2x=1

=> -x * 2x=1-1

=> -x * x=0/2

=> 0 ANS.......

Answer 2

Answer:7

Step-by-step explanation:

9^-4÷9^3(1-x)=9^2x

9^-4÷9^3-3x=9^2x

Take only powers for calculation as base is same

-4-(3-3x)=2x

-4-3+3x=2x

-7=2x-3x

-7=-1x

X=-7÷-1

X=7