Answer:
-0.10
Step-by-step explanation:
First, collect terms that are not raised to power hence 13+5=18
Now set up 18 to a base of 3 ie 3^{y}=18 and to find y we shall put natural logarithm both sides hence y ln3=ln 18. Therefore, [tex]y=\frac {ln 18}{ln 3}=3.1753979320439729421166809645352357128792[/tex]
Now since both bases at LHS and RHS are same, ie 3 then
8x+4=3.1753979320439729421166809645352357128792
8x=−0.824602067956
X=−0.103075258494
Rounded off, x=-0.10
