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Andreiminoiu123
a fost răspuns

aflati termenul necunoscut..:(7xn+40+587-643-29)×2=36

Răspuns :

Rodi11
(7xn+40+587-643-29)×2=36
7xn+40+587-643-29=36:2
7xn+40+587-643-29=18
7×n+40+587=18+29+643
7×n+40+587=47+643
7×n+40+587=690
7×n=690-587-40
7×n=103-40
7×n=63
n=63:7
n=9

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