Question

Solve for x 3(2^x-3)=384

Answer 1

Solve for x: 3[2^(x-3) ]=384:

solution:

Here,3[ 2^(x-3) ] = 384

or, 2^(x-3) = ( 384 /3 )

or, 2^(x-3) = 128

or, 2^(x-3) = 2^(7)

or, x-3 = 7 [ ∵ laws of indices ]

or, x = 7+3

∴ x = 10 ans