Question

tìm x

274 - ( 9x x+18)=4

442+(418-x)=860

Answer 1

274 - ( 9x+18)=4

9x+18=274-4

9x+18=270

9x=270-18

9x=252

x=252:9

x=28

442+(418-x)=860

418-x=860-442

418-x=418 

x=418-418

x=0

Answer 2

`274 - ( 9xx x+18)=4`

`9xx x+18 =274-4`

`9xx x+18 =270`

`9 xx x=270-18`

`9 xx x=252`

`x=252:9`

`x= 28`

__

`442+(418-x)=860`

`418-x=860-442`

`418-x=418`

`x=418-418`

`x=0`

Answer 3

`#3107`

`274 - (9x + 18) = 4`

`=> 9x + 18 = 274 - 4`

`=> 9x + 18 = 270`

`=> 9x = 270 - 18`

`=> 9x = 252`

`=> x = 252 \div 9`

`=> x = 28`

Vậy, `x = 28.`

____

`442 + (418 - x) = 860`

`=> 418 - x = 860 - 442`

`=> 418 - x = 418`

`=> x = 418 - 418`

`=> x = 0`

Vậy, `x = 0.`