x + 100 = 200 - 300
x + 100 = - 100
x = -100 - 100
x = 200
Vậy x = 200
x+100=200-300
x+100=-100
x=-100-100
x=-200
x + 100 = 200 - 300
x + 100 = -100
x = -100 - 100
x = -200
x+100=200-300
x+100=-100
x=-100-100
x=-200
x + 100 = 200 - 300
x + 100 = -100
x = -100 -100
x = 200
x+100=200-300
x+100=-100
x=-100-100
x=-200
TK@@@@@@@@@@@@@@@@@
x + 100 = 200 - 300
x + 100 = - 100
x = -100 - 100
x = 200
Vậy x = 200
x+ 100 = 200 - 300
=> x+ 100 = -100
=> x= -200
h nha