226. Решите уравнение: 1)x + 2,56 = 4; 2) 19,7 - x = 6,232; 3) x - 14,158 = 9,842; 4) (58 - x) : 41,3 = 6,287.

Решение:

1. 1)

\[ x + 2,56 = 4 \]

\[ x = 4 - 2,56 \]

\[ x = 1,44 \]

2. 2)

\[ 19,7 - x = 6,232 \]

\[ x = 19,7 - 6,232 \]

\[ x = 13,468 \]

3. 3)

\[ x - 14,158 = 9,842 \]

\[ x = 9,842 + 14,158 \]

\[ x = 24 \]

4. 4)

\[ (58 - x) : 41,3 = 6,287 \]

\[ 58 - x = 6,287 \times 41,3 \]

\[ 58 - x = 259,6631 \]

\[ x = 58 - 259,6631 \]

\[ x = -201,6631 \]

Ответ: 1) 1,44; 2) 13,468; 3) 24; 4) -201,6631.