a) \( 6(8x+5) = 0 \)
\( 8x+5 = 0 \)
\( 8x = -5 \)
\( x = -\frac{5}{8} \)
б) \( 6(8x+5) = -6 \)
\( 8x+5 = -1 \)
\( 8x = -6 \)
\( x = -\frac{3}{4} \)
в) \( -8(2x - 0.5) = 0 \)
\( 2x - 0.5 = 0 \)
\( 2x = 0.5 \)
\( x = 0.25 \)
г) \( -8(2x - 0.5) = -8 \)
\( 2x - 0.5 = 1 \)
\( 2x = 1.5 \)
\( x = 0.75 \)
Ответ: 3) a) -5/8; б) -3/4; в) 0.25; г) 0.75.