Question

solve 12^(x-2)=20
x=____?

Answer 1

240

Answer 2

apply ln on both side
& then use this rule ln(a)^b = b * ln(a)

Answer 3

can you plug numbers into equation then i will claculate, this is a foreign language to me

Answer 4

would a=12?

Answer 5

Yes a=12 & b = (x - 2)

Answer 6

ln(12)^x-2 = x-2 * ln(12)

Answer 7

yes correct so we have (x-2)*ln(12) =ln(20) right ?

Answer 8

i need answer in decimal

Answer 9

first find move ln(12) to right hand side

& then plug values of ln(12) & ln(20) 7 simplify it