1/2(18-5x)=1/3(6-4x)
9 - 2.5x = 2 - 4/3x re-arrange
-2.5x + 4/3x =2 - 9
-1.1666x..... = - 7 divide both sides by -1.16666.....
x = - 7/ -1.16666....
x = 6
