Question

What I the solution of the equation?
64 x-3 = 4 x+15

Answer 1

I kind of feel that it's an exponential equation

`64^(x-3)=4^(x+15)`
so remember
if
a^x=a^y, whee a=a then x=y
and
(x^m)^n=x^(mn)

so



`64^(x-3)=4^(x+15)`

64=4^3


`(4^3)^(x-3)=4^(x+15)`

`4^(3(x-3))=4^(x+15)`
3(x-3)=x+15
3x-9=x+15
minus x both sides
2x-9=15
minus 9 both sides
2x=6
divide 2
x=3

if it was just normal thing like 64x-3=4x+15, the answer is 3/10

Answer 2

i hope this helps you




64x-4x=15+3



60x=18


x=6.3/6.10



x=3/10


x=0,3