solve 7 power x = 9 power x-2
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7^x=9^x-2
taking log both sides
xlog7=(x-2)log9=xlog9-2log9
⇒xlog9-xlog7=2log9
⇒x(log9-log7)=2log9
⇒x=2log9/(log9-log7)
taking log both sides
xlog7=(x-2)log9=xlog9-2log9
⇒xlog9-xlog7=2log9
⇒x(log9-log7)=2log9
⇒x=2log9/(log9-log7)
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0
Answer:
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