Tìm x: 2x + 3/10 = 1 5/6 x 6/11

$Tìm x$

a) $2x+\frac{3}{10}=1\frac{5}{6}\times \frac{6}{11}$

b) $2x^2-72=0$

c) $\frac{1}{4}+\frac{1}{3}÷3x=-5$

$d)\frac{1}{3}+\frac{2}{5}\left|(x+1)\right|=1$