Question

Tìm x:biết: 

2.x+3=8

 

Answer 1

`@` `\text {Ans}`

`\downarrow`

`2*x+3=8`

`=> 2x=8-3`

`=> 2x=5`

`=> x= 5 \div 2`

`=>`\(x=\dfrac{5}{2}\)

Vậy, `x=`\(\dfrac{5}{2}.\)

Answer 2

2.x+3=8

2.x=8-3

2.x=5

x=5:2

x=2.5

x=

Answer 3

` 2 . x + 3 = 8`

` 2 . x = 8 - 3 `

` 2. x = 5 `

`    x  = 5 : 2 `

`    x  = 5/2`

 

Vậy ` x= 5/2`

Answer 4

2.x+3=8

2x=8-3

2x=5

x=5:2

x=5/2