Question

Medals!
What is the value of z in the equation 2(4z – 9 – 11) = 166 – 46?


15
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35

Answer 1

any ideas?

Answer 2

no idea :/ I'm reviewing this from an old lesson I got wrong but it never gave me the correct answer

Answer 3

@rebeccaxhawaii

Answer 4

combine the subtraction inside parentheses with the -9 and -11 and on the right side with 166 and -46 first

Answer 5

z = 20

Answer 6

how did you get that answer?

Answer 7

Do you know the distribution property?

Answer 8

expand 2(4z-9-11). You'll get 8z-18-22

Answer 9

-18-22=-40.
So that is 8z-40=166-46

Answer 10

166-46=120
adding 40 to both sides, we get
8z-40+40=120+40

Answer 11

which is
8z=160
divide both sides by 8, we have
z=20