Question

Tìm x biết :

l x + 19 l + l x + 5 l + l x + 2013 l = 4x

Giải chi tiết giúp mk nha các bn!!

Answer 1

Ta có: \(\left|x+19\right|+\left|x+5\right|+\left|x+2013\right|\ge0\)

\(\Rightarrow4x\ge0\)

\(\Rightarrow x\ge0\)

\(\Rightarrow\left|x+19\right|+\left|x+5\right|+\left|x+2013\right|=x+19+x+5+x+2013=4x\)

\(\Rightarrow2037+3x=4x\)

\(\Rightarrow x=2037\)

Vậy x = 2037

Answer 2

Ta có : x+19+x+5+x+2013=4x

\(\Rightarrow\)3x+2037=4x

\(\Rightarrow\)x=2037