Question

Z=5 is a solution choose 3 answers

A
8=z+3


B
z-1=6z


C
20=40÷z


D
12z=60


E
12+z=60

Answer 1

A and D

Explanation:

A. 8 = z + 3 → subtract 3 from both sides:

5 = z

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B. z - 1 = 6z → subtract z from both sides:

-1 = 5z → divide both sides by 5:

-0.2 = z

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C. 20 = 40 ÷ z → multiply both sides by z:

20z = 40 → divide both sides by 20:

z = 2

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D. 12z = 60 → divide both sides by 12:

z = 5

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E. 12 + z = 60 → subtract 12 from both sides:

z = 48

Answer 2

Answer:1. (a) 8=z-3 ---> z=5

2.(d) 12z=60----> z=5

3.(e) 12+z=17 ----> z= 5

Explanation: