4(-5-4n)=-4-6(3n+1)

Solution for 4(-5-4n)=-4-6(3n+1) equation:

4(-5-4n)=-4-6(3n+1)

We simplify the equation to the form, which is simple to understand 
4(-5-4n)=-4-6(3n+1)

Reorder the terms in parentheses
+(-20-16n)=-4-6*(3n+1)

Remove unnecessary parentheses
-20-16n=-4-6+*(+3n+1+)

Reorder the terms in parentheses
-20-16n=-4+(-18n-6)

Remove unnecessary parentheses
-20-16n=-4-18n-6

We move all terms containing n to the left and all other terms to the right. 
-16n+18n=-4-6+20

We simplify left and right side of the equation. 
+2n=+10

We divide both sides of the equation by 2 to get n. 
n=5