3+1(y-4)=2(1-y)

Solution for 3+1(y-4)=2(1-y) equation:

3+1(y-4)=2(1-y)

We simplify the equation to the form, which is simple to understand 
3+1(y-4)=2(1-y)

Reorder the terms in parentheses
3+(+1y-4)=2*(1-y)

Remove unnecessary parentheses
+3+1y-4=+2+*(+1-y+)

Reorder the terms in parentheses
3+1y-4=+(+2-2y)

Remove unnecessary parentheses
+3+1y-4=+2-2y

We move all terms containing y to the left and all other terms to the right. 
+1y+2y=+2-3+4

We simplify left and right side of the equation. 
+3y=+3

We divide both sides of the equation by 3 to get y. 
y=1