|x-5|=10
x - 5 = +-10
xét 2 th
th1
x-5 = 10
x= 15
th2
x-5 = -10
x = -5
`|x-5|=10`
`@TH1:x-5=10=>x=10+5=15`
`@TH2:x-5=-10=>x=-10+5=-5`
Vậy `x=15` hoặc `x=-5`
|x – 5| = 10
\(=>\left[{}\begin{matrix}x-5=10\\x-5=-10\end{matrix}\right.=>\left[{}\begin{matrix}x=15\\x=-5\end{matrix}\right.\)