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Va roggg ex.2 3 4 dau coroana orice e URGENTT

Va Roggg Ex2 3 4 Dau Coroana Orice E URGENTT class=

Răspuns :

1) a) x+38=180=> x=142
b) x+1+2x-9+x=90
4x=98=> x=24*30’’(24 grade 30min)
c) 2x=90=> x=45