Răspuns :

Alexutzuu10id
223 = 3x + 19 => 3x = 204 => x = 68 =>   a = 68, b=68 si c=87.
Vezi imaginea Alexutzuu10
KittyKrissuid
a + b + c = 223
a = b
a + 19 = c

a ------------------------------------
b ------------------------------------
c ------------------------------------ + 19

3a + 19 = 223
3a = 223 - 19
3a = 204
a = 204 : 3
a = 68

b = a => b= 68
c = a + 19 => c = 68 + 19 ; c = 87 

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