0.3(y-2)=0.4y
We move all terms to the left:
0.3(y-2)-(0.4y)=0
We add all the numbers together, and all the variables
0.3(y-2)-(+0.4y)=0
We multiply parentheses
0.3y-(+0.4y)-0.6=0
We get rid of parentheses
0.3y-0.4y-0.6=0
We add all the numbers together, and all the variables
-0.1y-0.6=0
We move all terms containing y to the left, all other terms to the right
-0.1y=0.6
y=0.6/-0.1
y=-5+0.1/0.1
