-2(z+z)+1=(1-z)

Solution for -2(z+z)+1=(1-z) equation:

-2(z+z)+1=(1-z)

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

Simplifying terms in parentheses
-2*(+2z)+1=(1-z)

Reorder the terms in parentheses
+(-4z)+1=(1-z)

Remove unnecessary parentheses
-4z+1=+(+1-z+)

Remove unnecessary parentheses
-4z+1=1-z

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

We simplify left and right side of the equation. 
-3z=0

We divide both sides of the equation by -3 to get z. 
z=-0