(37 Află numărul necunoscut: 10 [(42 7+3 × 0) × 8-6]: 6=a: 7 100-1403 × (7:7 + 1 × 9)] × 6 = bx5 (25+ (100 2 x 4 × 10): 4] (27- c +c 35-d=19-(7+3 × 6) 5] × [3+(12- 36: 9): 4] 6+e=3+ [(3 x 8 6-6 × 0) + (30 - 459) 5] × 3 x 10 10 10) - (7 × 7+ 50: 5)] : 10 1-2=5 -[(10 x [1+30 (8× 4-3×9)] = 7 y- [72: (20 - 2 × 6) + 15] = 68 zx [18- 4 x (54 6 48 : 8)] = 60 g+[40- (3 x 11 - 90 10+ 0 × 5) : 4] = 82 - 31​