Question

3^(x – 4) = 7^(x + 9) please

Answer 1

I'd like to gently remind all those who would attempt to answer this question that it against the code of conduct to post the answer without sufficient explanation. Thank you.

Answer 2

thanks alan

Answer 3

alan turing

Answer 4

log both sides

Answer 5

log3^(x-4)=log7^(x+9)

Answer 6

remember the exponent rule?

Answer 7

(x-4)log3 = log3^(x-4)

Answer 8

so (x-4)log3=(x+9)log7

Answer 9

...thinking

Answer 10

expand, collect like terms

Answer 11

o got doff answers but none of them are x ≈ –25.86

x ≈ –2.59

x ≈ –0.39

x ≈ –0.04

Answer 12

then either you're wrong or the answers are wrong

Answer 13

what answer did you get?
could you show us how you got it please?

Answer 14

lol

Answer 15

i am using diff calculater sights and iv got answers 0 and 1

Answer 16

what did you put into your calculator?

Answer 17

-2.59? looks like -25.85589026...

Answer 18

maybe it's a misprint of the decimal place? lol

Answer 19

ok thank you thats what i wanted to know

Answer 20

yah maybe

Answer 21

what are the probabilities of you getting it wrong given that i've gotten it wrong and the question misprinting the answer?

Answer 22

and another one, the probability of me getting it wrong given that you've gotten it wrong