Задание 132. Решите уравнение. 14) 3(8-4x)-7=1 15) 5-4-(1-3x)=25 17) -1+6(1-2x)=-19 18) -1+4(3+3x)=-37

14) \( 3(8 - 4x) - 7 = 1 \)

\( 24 - 12x - 7 = 1 \)

\( 17 - 12x = 1 \)

\( -12x = 1 - 17 \)

\( -12x = -16 \)

\( x = \frac{-16}{-12} = \frac{4}{3} \)

Ответ: \( x = \frac{4}{3} \).

15) \( 5 - 4(1 - 3x) = 25 \)

\( 5 - 4 + 12x = 25 \)

\( 1 + 12x = 25 \)

\( 12x = 25 - 1 \)

\( 12x = 24 \)

\( x = \frac{24}{12} = 2 \)

Ответ: \( x = 2 \).

17) \( -1 + 6(1 - 2x) = -19 \)

\( -1 + 6 - 12x = -19 \)

\( 5 - 12x = -19 \)

\( -12x = -19 - 5 \)

\( -12x = -24 \)

\( x = \frac{-24}{-12} = 2 \)

Ответ: \( x = 2 \).

18) \( -1 + 4(3 + 3x) = -37 \)

\( -1 + 12 + 12x = -37 \)

\( 11 + 12x = -37 \)

\( 12x = -37 - 11 \)

\( 12x = -48 \)

\( x = \frac{-48}{12} = -4 \)

Ответ: \( x = -4 \).