Toán Lớp 6: tìm cặp số tự nhiên x,y bt (x+5)(y-3)=17
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Toán Lớp 6: tìm cặp số tự nhiên x,y bt (x+5)(y-3)=17
Comments ( 1 )
$(x+5)(y-3)=17$
$⇒$ \(\left[ \begin{array}{l}x+5=17\\y-3=17\end{array} \right.\)
$⇒$ \(\left[ \begin{array}{l}x=12\\y=14\end{array} \right.\)
Vậy $x=12;y=14$
$#mie1208$