solve each equation below for x
7^-9=9
lnx=lx5+ln9
log10(1/x^2)=2
3log8x=log8(36)+log8(12)-log8(2)
log2(x-3)-log2(2x+1)=-log2(4)

Question

solve each equation below for x
7^-9=9
lnx=lx5+ln9
log10(1/x^2)=2
3log8x=log8(36)+log8(12)-log8(2)
log2(x-3)-log2(2x+1)=-log2(4)

tkhunny · Answer

The first has no 'x'.
The rest require YOU to show YOUR work.  Go!

anonymous · Answer

the first one is 7^-x=9

anonymous · Answer

Yes I know the rest requires work but I don't know how to do it. Can you help me? You don't need to answer all of them I just want to learn how to do it. That's why i'm here.

ℐℵk℣ⱱøƴȡ◆ · Answer

lolol I'll help you bby.

tkhunny · Answer

You CAN'T have NO idea.  Show us ANYTHING.

anonymous · Answer

Its been a WHILE since I have done this. HELP ME!

tkhunny · Answer

Rule of logs: log(a) + log(b) = log(ab)

Using that rule, you can show us something in #2, #4,and #5.