Ответ:Решение:1) \( 4(8x + 3) = 40(2x - 3) + 15 \)\( 32x + 12 = 80x - 120 + 15 \)\( 32x + 12 = 80x - 105 \)\( 12 + 105 = 80x - 32x \)\( 117 = 48x \)\( x = \frac{117}{48} = \frac{39}{16} = 2 \frac{7}{16} \)Ответ: 2 7/16.