Tìm x: (x - 35) - 120 = 0; 124 + (118 - x) = 217

a, 8 [x -3] =0
b, 0: x = 0
c, [x - 35 ] -120 =0
d,124 +[118 -x] =217
e, 156 - [6 x +61 ] =82