Question

a) x  5 + 122 + 236 = 633 b) (x : 12)  7 + 8 = 36

Answer 1

a/\(x\times5+122+236=633\)
\(x\times5=633-236-122\)
\(x\times5=275\)
\(x=275:5\)
\(x=55\)
b/\(\left(x:12\right)\times7+8=36\)
\(\left(x:12\right)\times7=36-8\)
\(\left(x:12\right)\times7=28\)
\(x:12=28:7\)
\(x:12=4\)
\(x=4\times12\)
\(x=48\)

Answer 2

cái ô vuông kia là dấu gì vậy bạn?

Answer 3

Dau nhan nha

Answer 4

Minh moi vao

Answer 5

`x . 5 +122+236=633`

`=>x . 5 +122=633-236`

`=>x . 5 +122=397`

`=>x . 5 =397-122`

`=>x . 5 =275`

`=>x=275:5`

`=>x=55`

`-----`

`(x:12). 7 +8=36`

`=> (x:12) . 7=36-8`

`=> (x:12) . 7= 28`

`=>x:12=28:7`

`=>x:12=4`

`=>x=4.12`

`=>x=48`