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sergiy2304 [10]
3 years ago
5

How many solutions does the following system of equations have?

Mathematics
1 answer:
musickatia [10]3 years ago
5 0

Answer:

There is one solution.

You use substitution;

2(3x+2)=5x+4

6x+4=5x+4

x+4=4

x=0

y=2

To verify your answer, pug in x and y into both equations.

Step-by-step explanation:

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Find all x ∈ Z satisfying each of the following equations.3x = 2 (mod 7)
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Answer:

7x−3=7k,x=7k+3,k∈ℤ

Step-by-step explanation:

3x ≡ 2 (mod 7)

3 is a solution, since 3×3−2=7.

All solutions are 3+7ℤ

y=3x−2/7=3(x−3)+7/7=3(x−3)/7+1

7x−3=7k,x=7k+3,k∈ℤ

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2 years ago
How many solution does 2x – 1 = 1 – 2x have?
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Answer:

1

Step-by-step explanation:

Hello,

2x – 1 = 1 – 2x

<=> 2x-1+2x=1

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<=> x = 2/4 = 1/2

Then there is only one solution.

Thanks

6 0
3 years ago
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Step-by-step explanation: it is negative 42 it is just the opposite cause the thumbs is down negative up positive

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2 years ago
Which equations best shows 48 is a multiple of 3
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Which choice most effectively combines the
pav-90 [236]

The choice that combines the given sentences most effectively is: Option C : furnished: their.

<h3>What is sentence correction?</h3>

Sentence correction or sentence improvement is a type of grammatical practice where a sentence is given with a word or a phrase that requires grammatical changes or improvement.

Now, here in the given sentence:

"The plainer rooms are more sparsely <u>furnished. Their</u> architectural features, furnishings, and decorations are just as true to the periods they represent",

The most suitable choice, by sentence correction, to combine the two sentences will be: Furnished: their (option C).

To learn more about sentence correction, refer to the link: brainly.com/question/14632568

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