Question

Tìm x
2x + 3 x +5 x + 900 = 11.20 + 4

Answer 1

2x + 3x +5 x + 900 = 11.20 + 4

<=> 10x + 900 = 224

<=> 10x = 224 - 900 = -676

<=> x = -338/5 = -67,6

Answer 2

`2x + 3 x +5 x + 900 = 11.20 + 4`

`=>(2+3+5).x+900= 220 + 4`

`=>10.x+900=224`

`=>10.x= 224 - 900`

`=>10.x= -676`

`=>x=-676 : 10`

`=>x= -676 . 1/10`

`=>x=-67,6`