{[(27×g-79)×61-78]×15+340}=40
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Răspuns :

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Vezi imaginea EAGLEEYES
{[(27×g-79)×61-78]×15+340}:25=40
[(27×g-79)×61-78]×15+340=40x25
[(27g-79)x61-78]x15=1000-340
(27g-79)x61-78=660:15
(27g-79)x61=44+78
27g-79=122:61
27g=2+79
g=81:27
g=3