95 - ( 85 + 4x ) = 30

2 câu trả lời

`95-(85+4x)= 30`

`85+4x= 95-30`

`85+4x= 65`

`4x= 65-85`

`4x= -20`

`x= -20:4`

`x= -5`

Vậy `x= -5`

`#Jo`

 

`95 - ( 85 + 4x ) = 30`

`⇒ 85 + 4x = 95 - 30`

`⇒ 85 + 4x = 65`

`⇒ 4x = 65 - 85`

`⇒ 4x = -20`

`⇒ x = -20 : 4`

`⇒ x = -5`

Vậy `x = -5`