Question

2x + 20 = k

Which of these is x + 9?

A. k/2 - 1
B. k/2 + 9
C. k + 9
D. k - 11

Guys plz answer fast

Answer 1

Answer:

option a

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Answer 2

2x + 20 = k,

Therefore,

2(x + 10) = k

x + 10 = k/2

x + 9 = x + 10 - 1 = k/2 - 1

Your answer is

A. k/2 - 1