Question

Câu 1: tìm y ,biết y:7+296=431 Câu 2: tìm y biết :2854 - y =3175-1614

Answer 1

Câu 1:

\(y:7+296=431\\ y:7=135\\ y=135\times7\\ y=945\)

Câu 2:

\(2854-y=3175-1614\\ 2854-y=1561\\ y=2854-1561\\ y=1293\)

Answer 2

câu `1`

`y : 7 + 296 = 431`

`=> y :7= 431-296`

`=> y :7=135`

`=>y=135 xx 7`

`=>y=945`

câu `2`

`2854 - y =3175-1614`

`=>2854 - y =1561`

`=> y=2854 -1561`

`=> y=1293`

`@  `\(\text{ Ng Baoo Thuu}\)

Answer 3

`1)` `y:7+296=431`

`y:7=431-296`

`y:7=135`

`y=135xx7`

`y=945`

`2)`

`2854-y=3175-1614`

`2854-y=1561`

`y=2854-1561`

`y=1293`

`#lv`

Answer 4