Răspuns :
a + b = 35
a = 15 , b = 20
15 + 20 = 35
8a - 7b = 23
a = 9 , b = 7
8 x9 - 7 x7 = 72 - 49 = 23
a = 15 , b = 20
15 + 20 = 35
8a - 7b = 23
a = 9 , b = 7
8 x9 - 7 x7 = 72 - 49 = 23
a + b = 35
a = 15 , b = 20
15 + 20 = 35
8a - 7b = 23
a = 9 , b = 6 ok am ga
8 x9 - 7 x7 = 72 - 49 = at
a = 15 , b = 20
15 + 20 = 35
8a - 7b = 23
a = 9 , b = 6 ok am ga
8 x9 - 7 x7 = 72 - 49 = at