Question

[Bùi Ngọc Thanh Huyền]

X + 6829 = 17939	82973 – X = 62838
X : 8 = 1321	X x 3 + 7270 = 18382

Answer 1

[Chuu]

`x + 6829 = 17939`

`x=17939 - 6829`

`x = 11110`

______________________

`82973 -x = 62838`

`x = 82973 - 62838`

`x = 20135`

___________________

`x : 8 = 1321`

`x = 1321 xx 8`

`x = 10568`

_________________________

`x xx 3 + 7270 = 18382`

`x xx 3 = 18382 - 7270`

`x xx3 = 11112`

`x = 11112 : 3`

`x = 3704`