a]
[tex]\frac{3x-4}{2}=\frac{x}{3} \ \ |\cdot6\\\\3(3x-4)=2x\\\\9x-12=2x\\\\9x-2x=12\\\\7x=12 \ \ |:7\\\\x=\frac{12}{7}\\\\\boxed{\boxed{x=1\frac{5}{7}}}[/tex]
b]
[tex]\frac{5-3x}{3}=\frac{3}{4}\\\\4(5-3x)=3\cdot3\\\\20-12x=9\\\\-12x=9-20\\\\-12x=-11 \ \ |:(-12)\\\\\boxed{\boxed{x=\frac{11}{12}}}[/tex]
c]
[tex]2x-1=4x+2\\\\2x-4x=2+1\\\\-2x=3 \ \ |:(-2)\\\\\boxed{\boxed{x=-1,5}}[/tex]
d]
[tex]\frac{3x+1}{5}=x+3 \ \ |\cdot5\\\\3x+1=5x+15\\\\3x-5x=15-1\\\\-2x=14 \ \ |:(-2)\\\\\boxed{\boxed{x=-7}}[/tex]