0.3(y-2)=0.4y ytytytytyty

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