Answer :

luana
[tex]q=5n+5z\ \ \ \ \ \ \ |subract\ 5z\\\\q-5z=5n\ \ \ \ \ \ \ |divide\ by\ 5\\\\n=\frac{q-5z}{5}\\\\Answer\ is\ n=\frac{q-5z}{5}[/tex]
[tex]Q=5n+5z\\ 5n=Q-5z\\ n=\frac{Q-5z}{5}[/tex]

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