x + 125 = 650 - 255
x + 125 = 395
x = 395 - 125
x = 270
x + 125 = 650 - 255
x + 125 = 395
x = 395 - 125
x = 270
x+125=650-225
x+125=425
x =425-125
x =300
ủng hộ mk nhé ^...^
x+125=650-255
x+125=395
x =395-125
x =270
lúc nãy mk nhìn lộn số!!!!!!!Tk ủng hộ mk nhe
x + 125 = 650 - 255
x + 125 = 395
x = 395 - 125
x = 270
\(x+125=650-255\)
\(x+125=395\)
\(x=395-125\)
\(x=270\)