TH1 15-/X+5/=5
=>15-X+5=5
X=5
TH2 15-/X+5/=-5
=>15-X+5=-5
=>X=25
VAY X=5 HOAC 25
15-|x+5|=5
( x + 5) = 15-5
( x + 5) = 10
x+ 5 = 10
x = 10 - 5
x = 5
15 - / x + 5 / = 5
x + 5 = 15 - 5
x + 5 = 10
x = 10 - 5
x = 5
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\(15-\left|x+5\right|=5\)
\(\Rightarrow\left|x+5\right|=15-5\)
\(\Rightarrow\left|x+5\right|=10\)
\(\Rightarrow x+5=\hept{\begin{cases}10\\-10\end{cases}}\)
\(\Rightarrow\)\(\hept{\begin{cases}x+5=10\\x+5=-10\end{cases}}\)
\(\Rightarrow\hept{\begin{cases}x=5\\x=-15\end{cases}}\)
Vậy x ={-15;5}