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Andreeadinica
a fost răspuns

C) 327 - 3 × x =15 +48 afla x
D)15 + (x+2) +21 = 47

Răspuns :

CosmoteRo
327-3x=15+48
327-3x=63
327-63=3x
264=3x
x=264:3=88

15+x+2+21=47
38+x=47
x=47-38
x=9

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