{-3x+2.[45-x3(3x+7)-2x]+x=55-103-57:[-2.(2x-1)².(-9)^0 =-106
-3x+2.45-x3.3x+7-2x+x=55-103-57:(-2).(2x-1).(2x-1).(-1)=-106
(-3x-3x-2x+x)+90.3x+7=55-103-57:(-2).2x-1.2x-1.(-1)=-106
-7x+270x+7 = 55-103-57:2x-1[(-2)-(-1)]=-106
263x+7= 55-103-57:2x-1.(-3)=-106
263x+7=-105:(-3).2x-1=-106
263x+7=35.2x-1=-106
263x+7=2x-1 =-3.028571428571429
263x+7=2x = -2.028571428571429
263x+7 =x = -1.014285714285714
263x+7 = -1.014285714285714
263x = -8.014285714285714
x =0.0304725692558392
vậy x = 0.0304725692558392