Question

250:2+fx[48x2+9x(3x12-96:3)]:8=158

Answer 1

250 : 2 + f * [48*2+9*(36-32)]:8 =158
125+f * (96 + 9 * 4) :8 =158
125 +f * (96+36) :8 =158
125 +f * 132 :8 =158
f*132:8 =158 - 125
f *132 :8 =33
f*132 = 33*8
f*132 = 264
f =264 :132
f =2