85z-27-19(1+z)=43(1-z)+91+91z

Question

85z-27-19(1+z)=43(1-z)+91+91z

Answer 1

85z-27-19-19z=43-43z+91+91z 
60z-46=48z+134 
60-46-48-134=0 
12z-180=0 
12z=180 
z=15

Answer 2

85z-27-19-19z=43-43z+91+91z.
85z-19z+43z-91z=27+19+43+91.
18z=180.
z=10.
Ответ: z=10