4(8-z) - 50 = 26z - 6 (3+5z) ???

4(8-z) - 50 = 26z - 6 (3+5z)      simplify

32 - 8z - 50 = 26z - 18 - 30z     combine like terms

-18 - 8z = -4z - 18     add 18 to both sides

-8z = -4z   divide by -4 on both sides

2z = 0        divide by 2 on both sides

z = 0