Question

ln(2x-1) = ln11

Answer 1

If \( \ln a = \ln b \), then \(a = b\).

Answer 2

how?

Answer 3

Here's an example:
ln(3x + 1) = ln(10)
then
3x + 1 = 10
3x = 9
x = 3

Check: for x = 3,
ln(3x + 1) = ln(10) ?
ln[3(3) + 1] = ln(10) ?
ln(10) = ln(10) is true, therefore x = 3 is the correct solution.

Answer 4

2x-1=11
2x=12
x=6?

Answer 5

\[\log_{4}(x+7)=\log_{4}14 \]

Answer 6

Correct, x = 6.

Answer 7

For the second problem, since the bases are the same, just set x + 7 = 14.

Answer 8

then x = 7 :D

Answer 9

can you help me with 4 more? :)

Answer 10

Yes, but can you please start a new post for each one?

Answer 11

okay thanks