Question

Solve log(-5x) = log(10 - 3x).

Answer 1

x = 5

x = -5

x = 6

x = -8

Answer 2

\[ \log(-5x) = \log(10 - 3x)\]
\[e^{ (\log(-5x) )}= e^{(\log(10 - 3x))}\]
\[−5x=10−3x\]

Answer 3

When I took e^ to both sides the logs went away...can you solve for x now?

Answer 4

d?

Answer 5

Did you even try?

Answer 6

another way to view this is that log is a one to one function, so if
\[\log(\text{something})=\log(\text{something else})\] then
\[\text{something}=\text{something else}\]

Answer 7

uhm yess i did. i added+5 to both sides

Answer 8

\[−5x=10−3x \]\[−5x+5x=10−3x +5x \]\[0=10+2x \]

Answer 9

Subtract 10 to both sides and divide by 2....what do you get now?

Answer 10

-4

Answer 11

Do you know how to add subtract divide and multiply?

Answer 12

dont try me

Answer 13

of course i do

Answer 14

You should be able to get the answer from where I left of. you only have to do two steps. subtract and divide.

Answer 15

i get 0!!

Answer 16

-5

Answer 17

yes good job....sorry for getting at you....