Tìm Y a) 124 x y = 4829 – 365

* Hướng dẫn giải

$\begin{array}{l}a)124\times y=4829-365\\ 124\times y=4464\\ y=4464:124\\ y=36\end{array}$

$\begin{array}{l}b)2652:y=26\\ y=2652:26\\ y=102\end{array}$