Question

so i have to solve for x...Equation: 5 with an exponent of -x+4 =88

Answer 1

can you type out the equation?

Answer 2

with the exponent.

Answer 3

\[5^{-x+4}=88\]

Answer 4

have you learnt log?

Answer 5

well I'm sorry I can't help you with this one because this relates to natural log and I have only learnt normal log so far.
The answer can be seen here though.
http://www.wolframalpha.com/input/?i=5%5E%28-x%2B4%29%3D88

Answer 6

whats the difference between natural and normal log??

Answer 7

Basically, the difference is the base in "regular" logs the base is 10 in natural logs the base is e = 2.7183.....

Answer 8

e is an irrational number like \[\pi \] which is 3.142.....

Answer 9

oh ok well thanks for the link

Answer 10

no problem, I would have really liked to help you but I can't cause I haven't learn it, sorry!

Answer 11

its ok at least you tried! =0)...thanks!