x+{(x-3)-[(x+3)-(x-2)]}=0
=> x + [x-3-(x+3) + (x-2)] = 0
=> x + (x - 3 - x - 3 + x - 2) = 0
=> x + x - 8 = 0
=> 2x = 8
=> x = 4
Vậy...
x+{(x-3)-[(x+3)-(x-2)]} = 0
=> x + { (x -3) - [ x + 3 - x + 2]} =0
=> x + {(x - 3) - [ 3 + 2 + x - x ]} = 0
=> x + {x - 3 - 5 } = 0
=> x + { x - 8 } = 0
=> x + x - 8 = 0
=> 2x - 8 = 0
2x = 8
x = 4
x+{(x-3)-[(x+3)-(x-2)]} = 0
=> x + { (x -3) - [ x + 3 - x + 2]} =0
=> x + {(x - 3) - [ 3 + 2 + x - x ]} = 0
=> x + {x - 3 - 5 } = 0
=> x + { x - 8 } = 0
=> x + x - 8 = 0
=> 2x - 8 = 0
2x = 8
x = 4