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222-9+11+12:2*14+14 = ? ( )

Toán Lớp 6: /x/=/-33/7/ dau / la gia tri tuyet doi nha

Toán Lớp 6: /x/=/-33/7/
dau / la gia tri tuyet doi nha

Comments ( 2 )

  1. ║x║ = ║$\frac{-33}{7}$ ║
    ⇔ ║x║ = $\frac{33}{7}$ 
    ⇒  \(\left[ \begin{array}{l}x=\frac{33}{7} \\x=-\frac{33}{7}\end{array} \right.\)
    Lunngoctrang1
    Xin ctlhn cho nhóm

  2. |x|=|$\frac{-33}{7}$|
    =>|x|=$\frac{33}{7}$
    =>\(\left[ \begin{array}{l}x=\frac{33}{7}\\x=-\frac{33}{7}\end{array} \right.\) 
     

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222-9+11+12:2*14+14 = ? ( )