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Mathematics 7 Online
OpenStudy (anonymous):

solve 27^3x+2=9^2x

OpenStudy (anonymous):

its 9^2x

OpenStudy (anonymous):

\[27^{3x+2}+2=9^{2x}\]

OpenStudy (zarkon):

\[27^{3x+2}=9^{2x}\]?

OpenStudy (anonymous):

yes

OpenStudy (zarkon):

\[(3^3)^{3x+2}=(3^2)^{2x}\] \[3^{3(3x+2)}=3^{2\cdot2x}\] so solve \[3(3x+2)=2\cdot2x\]

OpenStudy (anonymous):

-5/6?

OpenStudy (zarkon):

close

OpenStudy (zarkon):

flip it

OpenStudy (anonymous):

so x = -6/5?

OpenStudy (zarkon):

yes

OpenStudy (anonymous):

thank you!

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