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 hey (60*2:a-14:2)*9=36

Răspuns :

(30*2/a-14/2)*9=36 faci mersul invers
(60*2/a-14/2)=36/9=4
(120/a-7)=4
scoatem din paranteza
120/a-7=4
120/a=11
120/a=
a=120/11a=da cu rest




(60*2:a-14:2)*9=36 (120:a-7)*9=36/9 120:a-7=4/+7 120:a=11 120:11=? Nu se imparte exact.