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vichka [17]
3 years ago
11

Help fast please it's timed ​

Mathematics
1 answer:
yan [13]3 years ago
3 0

Answer:

2x= 3x-7

-x=-7

x=7

so, the first option

Step-by-step explanation:

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The set of integers is closed under the operation of addition.
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Answer:

A: 2+27=29

B: The sum of the integers 2 and 27 is the integer 29, which demonstrates that integers are closed under addition.

Step-by-step explanation:

Since, closed property of addition for a set A is defined as,

∀ x, y ∈ A ⇒ x + y ∈ A,

∵ Set of integer is closed under multiplication,

If Z represents the set of integer,

Then 2, 27 ∈ Z  ⇒ 2 + 27 = 29 ∈ Z,

Hence, the equation illustrates given statement,

2+27 = 29

The statement that correctly explains given statement,

The sum of the integers 2 and 27 is the integer 29, which demonstrates that integers are closed under addition.c

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A
Amanda [17]

Answer:

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Step-by-step explanation:

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0.7

Step-by-step explanation:

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Lubov Fominskaja [6]

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Step-by-step explanation:

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3 years ago
The Perimeter of a Pentagon is 20.5 centimeters. Four sides of this pentagon have the same length, in centimeters, x, and the ot
RideAnS [48]

Answer:

4.6\ \text{cm}

Step-by-step explanation:

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The value of x is 4.6\ \text{cm}.

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