Question

9x-8= -4x+12 , -11x-9=4x-9 , 8x+11=-3x+14

Answer 1

$9x - 8 = - 4x + 12 \ 9x + 4x = 12 + 8 \ 13x = 20 \ x = frac{20}{13} = 1 frac{7}{13}$
$- 11x - 9 = 4x - 9 \ - 11x - 4x = - 9 + 9 \ - 15x = 0 \ x = 0$
$8x + 11 = - 3x + 14 \ 8x + 3x = 14 - 11 \ 11x = 3 \ x = frac{3}{11}$