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3 years ago

9 – 2k = 25 what is k

Mathematics

2 answers:

worty [1.4K]3 years ago

8 0

Answer:

k = - 8

Step-by-step explanation:

Subtract 9 from both sides to get the constants on one side and the variables on the other

9 - 2k = 25

- 2k = 25 - 9

Simplify

- 2k = 16

Divide by -2 on both sides to isolate the variable, then simplify once more.

- 2k/ -2 = 16/ -2

k = 16/ -2

k = -8

Gnom [1K]3 years ago

7 0

Answer:

k = -8

Step-by-step explanation:

9 – 2k = 25

- 2k = 25 - 9

-2k = 16

k = 16 / -2

k = -8

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Step-by-step explanation:

The formula of the nth term in the arithmetic sequence is

$a_{n}=a+(n-1)d$ , where

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∵ The first term of an arithmetic sequence is equal to four

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