2(4z-9-11)=166-46
8z-18-22=120
8z-40=120
Add 40 from both side
8z-40+40=120+40
8z=160
Divided 8 from both side
8z/8=160/8
z=20. Hope it help!
Answer:
The answer for the first equation is,
X = 6, -4
The answer for second equation is,
X = 9,2
The formula is 2”6 hope I helped
If there was a chart with this that would be helpful but at this time with the information you have given you can not solve this problem
