What does x equals when 2x equals 128?

find x when,

2x=128

2x=128

/2 /2

x=128

/2

x=64

then check your answer by doing the following

if x=64, then what is 2x?

2(64)=? or 2 * 64=? or 2 x 64=?

2 times 64 equals 128!