Hej hej!
a]
[tex]3x-4=5x\\\\3x-5x=4\\\\-2x=4 \ \ |:(-2)\\\\\boxed{x=-2}[/tex]
b]
[tex]6x+4=2x\\\\6x-2x=-4\\\\4x=-4 \ \ |:4\\\\\boxed{x=-1}[/tex]
c]
[tex]-2x+7=6x-9\\\\-2x-6x=-9-7\\\\-8x=-16 \ \ |:(-8)\\\\\boxed{x=2}[/tex]
d]
[tex]-2x=7x+18\\\\-2x-7x=18\\\\-9x=18 \ \ |:(-9)\\\\\boxed{x=-2}[/tex]
e]
[tex]-4x+5=25-9x\\\\-4x+9x=25-5\\\\5x=20 \ \ |:5\\\\\boxed{x=4}[/tex]
