12(s-1)-4(2s-1)=2(s+1)

Solution for 12(s-1)-4(2s-1)=2(s+1) equation:

12(s-1)-4(2s-1)=2(s+1)

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

Reorder the terms in parentheses
+(+12s-12)-4*(2s-1)=2*(s+1)

Remove unnecessary parentheses
+12s-12-4+*(+2s-1+)=+2+*(+s+1+)

Reorder the terms in parentheses
+12s-12+(-8s+4)=2*(s+1)

Remove unnecessary parentheses
+12s-12-8s+4=+2+*(+s+1+)

Reorder the terms in parentheses
+12s-12-8s+4=+(+2s+2)

Remove unnecessary parentheses
+12s-12-8s+4=+2s+2

We move all terms containing s to the left and all other terms to the right. 
+12s-8s-2s=+2+12-4

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

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