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Cipriciprian110
a fost răspuns

22. a) Stiind ca x + 2y + 13 = 24 , determinati 18 + 2y + x ;
      b) Stiind ca 2x + 3y + 17 = 38 ,determinati 3y + 29 + 2x .
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Răspuns :

Mihaelap
a) x + 2y = 24 - 13
x + 2y = 11
18 + 11 = 29
b) 2x + 3y = 38 - 17
2x + 3y = 11
29 + 11 = 40
X+2y+13+5=?
24+5=29
B)2x+3y+29=?
2x+3y+17+12=38+12=50