~ Bạn tham khảo ~
`(x-12) : 5 = 2`
`x-12 = 5.2`
`x -12= 10`
`x=10+12`
`x=22`
________________
`(x-34) . 15 = 0`
`x-34 =0`
`x=0+34`
`x=34`
__________________
`18(x-16) = 18`
`x - 16=1`
`x=1+16`
`x=17`
_____________________
`(x-10) . (x-16) = 0`
\(\left[ \begin{array}{l}x-10=0\\x-16=0\end{array} \right.\)
\(\left[ \begin{array}{l}x=10\\x=16\end{array} \right.\)
Vậy ` x in { 10 ; 16 }`
$#Vịt vàng$
