Question

2x minus 9 upon 3x plus 4 is equal to minus 1upon 16

Answer 1

$\frac{2x - 9}{3x + 4} = \frac{ - 1}{16} \\ 16(2x - 9) = -1(3x + 4) \\ 32x - 144 = - 3x - 4 \\ 32x + 3x = - 4 + 144 \\ 35x = 140 \\ x = \frac{140}{35} \\ x = 4$