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4 years ago

5k-7=-7 solve the equation to what is k

2 answers:

5 0

So 5k-7=-7
You need to do the opposite of addition,which is subtraction so...
5k-7=-7
+7
__
K=0
and to double check it,replace the (or variable) with our answer (0)...
so
5×0-7=-7
solve the problem...and
-7=-7√

kolezko [41]4 years ago

4 0

First you should add +7 on both sides of the equation so you will have:
5k = -7 +7 ⇒ 5k = 0 so k = 0 :)))
i hope this is helpful
have a nice day

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So, A permutation is a mathematical technique that determines the number of possible arrangements.

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So, Permutation takes place with $P^{10} _{2}$ .

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Now solve this then

$P^{10} _{2} = \frac{10!}{(10 -2) !}$

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$P^{10} _{2} = \frac{10!}{(8) !}$

$P^{10} _{2} = \frac{10*9*8*7*6*5*4*3*2*1}{(8*7*6*5*4*3*2*1) !}$

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Learn more about permutation here

brainly.com/question/11732255

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