42255x5+55-65=211275+55-65
=211220-65
=211265
x+500=10000
x =10000-500
x =9500
k mk mk k lại
a) 42255 x 5 + 55 - 65=211275+55-65=211330-65=211265
x+500=10000
x=10000-500
x=9500
a) 42255 x 5 + 55 - 65
= 211 275 + 55 - 65
= 211 330 - 65
= 211 265
x + 500 = 10 000
x = 10 000 - 500
x = 9 500
tk mk nha bn !!!
a) 42255 x 5 + 55 - 65
= 211275 + 55 - 65
= 211330 - 65
= 211265
x + 500 = 10000
x = 10000 - 500
x = 9500
Vậy x = 9500
Hok tốt !