Question

X x 2 + X x 1/2 =5

tìm x

Answer 1

`x xx 2 + x xx 1/2 =5 `

`=> x xx (2 +1/2 ) =5`

`x = 5 : ( 4/2 +1/2 ) `

`x = 5 : 5/2 = 5 xx 2/5 `

`x=2`

Answer 2

X x 2 + X x 1/2 =5

=> X x ( 2 + 1/2 ) = 5

=> X x 5/2 = 5

=> X = 5 : 5/2

=> x = 2

Answer 3

X x 2 + X x \(\dfrac{1}{2}\) =5

=> X x ( 2 + \(\dfrac{1}{2}\)) = 5

=> X x \(\dfrac{5}{2}\) = 5

=> X = 5 : \(\dfrac{5}{2}\)

=> x = 2

Answer 4

⇒ x × (2+1/2)=5

x= 5 : (4/2 + 1/2)

x=5 :5/2 = 5× 2/5

x=2