Toán |x-3/4|=1/5+|1/7-1/14| Ai làm hay e vote 5* ạ 26/11/2021 By Ivy |x-3/4|=1/5+|1/7-1/14| Ai làm hay e vote 5* ạ
`|x-3/4|=1/5+|1/7-1/14|` `⇔|x-3/4|=19/70` ⇔\(\left[ \begin{array}{l}x-3/4=19/70\\-(x-3/4)=19/70\end{array} \right.\) ⇔\(\left[ \begin{array}{l}x=143/140\\x=67/140\end{array} \right.\) Trả lời
Đáp án: $|x-3/4|=1/5+|1/7-1/14|$ $=> |x-3/4|=1/5+1/14$ $=> |x-3/4|=19/70$ $=> x-3/4=19/70$ hoặc $x-3/4=-19/70$ $=> x=143/140$ hoặc $x=67/140$ BẠN THAM KHẢO NHA!!! Trả lời
`|x-3/4|=1/5+|1/7-1/14|`
`⇔|x-3/4|=19/70`
⇔\(\left[ \begin{array}{l}x-3/4=19/70\\-(x-3/4)=19/70\end{array} \right.\)
⇔\(\left[ \begin{array}{l}x=143/140\\x=67/140\end{array} \right.\)
Đáp án:
$|x-3/4|=1/5+|1/7-1/14|$
$=> |x-3/4|=1/5+1/14$
$=> |x-3/4|=19/70$
$=> x-3/4=19/70$ hoặc $x-3/4=-19/70$
$=> x=143/140$ hoặc $x=67/140$
BẠN THAM KHẢO NHA!!!