a) x = 100a +30 + a +10a + 3 + 30 +a = 112a + 63
y = 100a + 10 a + a + 60 + a +3 = 112+63
x : y = 1 r = 0
b) x = 2^n - n² n ∈ {0,1,2,3,4} ⇒ A = {1,0, -1,} card = 3
2) 10x + 35 - 85 = 100 10x = 150 x = 15
3) x = 9y + 10
a) 2x - 18y +5 = 18y +20 - 18y +5 = 25
b) y = impartitor 10 = rest
deoarece r < y ⇒ y >10
ptr. y = 11 x = 99+10 = 109
ptr. y > 11 x > 109 ⇒ x ≥ 109
