a) \( (3x+5) + (8x+1) = 17 \)
\( 11x + 6 = 17 \)
\( 11x = 11 \)
\( x = 1 \)
a) \( 30 + 5(3x-1) = 35x - 25 \)
\( 30 + 15x - 5 = 35x - 25 \)
\( 25 + 15x = 35x - 25 \)
\( 50 = 20x \)
\( x = \frac{50}{20} = 2.5 \)
б) \( 195(3x - 1) = 9 \)
\( 585x - 195 = 9 \)
\( 585x = 204 \)
\( x = \frac{204}{585} = \frac{68}{195} \)
a) \( 6(8x + 5) = 0 \)
\( 8x + 5 = 0 \)
\( 8x = -5 \)
\( x = -\frac{5}{8} \)
б) \( 6(8x + 5) = -6 \)
\( 8x + 5 = -1 \)
\( 8x = -6 \)
\( x = -\frac{6}{8} = -\frac{3}{4} \)
б) \( 10x - 5 = 6(8x + 3) - 5x \)
\( 10x - 5 = 48x + 18 - 5x \)
\( 10x - 5 = 43x + 18 \)
\( -23 = 33x \)
\( x = -\frac{23}{33} \)
Ответ: 1) a) 1; 2) a) 2.5; б) 68/195; 3) a) -5/8; б) -3/4; 4) б) -23/33.