Question #2cd37

1 Answer
Dec 17, 2017

Apply logarithms

Explanation:

#6^(x+9)=7^x

'Applying logarithms (remember that the dominion is (x+9>0 and x>0):

(x+9)ln6=xln7(x+9)ln6=xln7

xln6-xln7=-9ln6xln6xln7=9ln6

xln(6/7)=-9ln(6)xln(67)=9ln(6)

x=-(9ln(6))/ln(6/7)x=9ln(6)ln(67)

x~-104.61x~104.61