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Ajutor!


Rezolvati ecuatiile:
(82+y) : 6 = 17
(J-33) : 9 = 305
111+2x+29=10(10 la puterea 3 (cub)
5x+52-31=30 (la puterea2) - 19
5(y-2)+3=38
9+2(14-y)=15


Răspuns :

(82+y):6=17
82+y=102
y=20

(J-33):9=305
J-33=2745
J=2778

5 (y-2) +3 =38
5y-10+3=38
5y-10=35
5y=45
y=9

9+2 (14-y)=15
9+28-2y=15
28-2y=6
-2y=-22
y=-22:-28
y=-50
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