Question

Tìm x :

x.1/2 + x = 4 

Mong các bạn giải nhanh cho mình

Answer 1

x . 1/2 + x = 4

x . ( 1/2 + 1 ) = 4

x . 3/2 = 4

x = 8/3

Answer 2

x.1/2 + x = 4 

2x.1/2=4

2x=4:1/2

2x=4.2

2x=8

x=8:2

x=4

Answer 3

\(x.\frac{1}{2}+x=4\)

<=>\(\frac{x}{2}+x=4\)

<=>\(x\left(\frac{1}{2}+1\right)=4\)

<=>\(x.\frac{3}{2}=4\)

<=>\(x=4:\frac{3}{2}=\frac{8}{3}\)

vậy \(x=\frac{8}{3}\)