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Mathematics 8 Online
OpenStudy (anonymous):

1. 92x = 27x - 1

OpenStudy (anonymous):

so whats the question?

OpenStudy (anonymous):

are you solving for x?

OpenStudy (anonymous):

its 9^2x=27^x-1

OpenStudy (anonymous):

Solving Exponential Equations with Equal Bases."

OpenStudy (anonymous):

this is easy

OpenStudy (anonymous):

3^2 is 9 and 3^3 is 27 so basically \[3^{2\times2x}=3^{3(x-1)} \]

OpenStudy (anonymous):

so the equations will be \[3^{4x}=3^{3x-3}\]

OpenStudy (anonymous):

since the bases are same now u can do 4x=3x-3 and the answer is x=-3

OpenStudy (anonymous):

did u get it?

OpenStudy (anonymous):

yes thanks

OpenStudy (anonymous):

no problem

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