3.420 Найдите корень уравнения: а) (61 - x) : 13 = 4; 6) 26. (x - 2) = 208.

1. а) $$ (61 - x) : 13 = 4 $$$$ 61 - x = 4 \times 13 $$$$ 61 - x = 52 $$$$ x = 61 - 52 $$$$ x = 9 $$
2. б) $$ 26 \cdot (x - 2) = 208 $$$$ x - 2 = 208 : 26 $$$$ x - 2 = 8 $$$$ x = 8 + 2 $$$$ x = 10 $$

Ответ:

1. а) 9
2. б) 10