(x - 140) : 7 = 3^3 - 2^3 . 3
(x - 140) : 7 = 27 - 8 . 3
(x - 140) : 7 = 27 - 24
(x - 140) : 7 = 3
x - 140 = 3 . 7
x - 140 = 21
x = 21 + 140
x = 161
(x-140):7=3^3-2^3.3
(x-140):7=27-8.3
(x-140):7=27-24
(x-140):7=3
x-140 =3.7
x-140 = 21
x =21+140
x = 161