Помогите решить задачу. Спасибо.

Заполните рамочки числами так чтобы получилось верное равенство
1. (x + 5) ⋅ ◻= 3x +15;
2. (9 - y) ⋅ 2 = ◻ - ◻;
3. (◻ + 6) ⋅ 3 = 12x + ◻;
4. (◻ - y) ⋅ 8 = 40 - ◻;
5. (7x + ◻) ⋅ 4 = ◻ + 16;
6. (2x + 11) ⋅ ◻ = 12x + ◻;

1. (x + 5) ⋅ 3= 3x +15; 2. (9 - y) ⋅ 2 = 18-2у; 3. (4 + 6) ⋅ 3 = 12x + 18; 4. (5 - y) ⋅ 8 = 40 - 8у; 5. (7x + 4) ⋅ 4 = 28х + 16; 6. (2x + 11) ⋅ 6 = 12x + 66;