(0.5(0.5(0.5(x-0.5)))=0.5 Помогите решить.

(0.5(0.5(0.5(x-0.5)))=0.5   =     (0.5(0.5( 0.5х - 0.25))) = 0.5    =     0.5(  0.25х - 0.125) = 0.5    =    0.125х - 0.0625 = 0.5    =     0.125х = 0.5 + 0.0625    =    0.125х = 0.5625    =   х=0.5625/0.125    =    х=4.5