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Paha777 [63]
4 years ago
14

−(7 − 2x) + 7 = −7

Mathematics
1 answer:
-BARSIC- [3]4 years ago
8 0

Answer:

-7/2

Step-by-step explanation:

−(7 − 2x) + 7 = −7

-7 + 2x + 7 = -7

2x + 7 = 0

2x = -7

x = -7/2

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What is the factored form of the expression. (2n^2 + 5n + 3) (4n - 5)
7nadin3 [17]

So firstly, <u>the factor (4n - 5) cannot be further factored, so we will be focusing on 2n² + 5n + 3.</u>

So for this, we will be factoring by grouping. Firstly, what two terms have a product of 6n² and a sum of 5n? That would be 2n and 3n. Replace 5n with 2n + 3n:

(2n^2 + 2n + 3n + 3)(4n - 5)

Next, factor 2n² + 2n and 3n + 3 separately. Make sure that they have the same quantity on the inside of the parentheses:

(2n(n+1)+3(n+1))(4n-5)

Now we can rewrite this expression as<u> (2n+3)(n+1)(4n-5) , which is your final answer.</u>

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4 years ago
How many numbers greater than 10 and smaller than 25 with distinct digits can we make by using two of the digits 2, 0, 1, and 8
saul85 [17]

Answer:

Only four numbers can be formed

Step-by-step explanation:

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Of these the conditions are only 2, 0, 1 , 8 should be used.

First digit cannot be 0 or  8 because we want two digit numbers between 10 and 25

So first digit can be either 1 or 2

If first digit is 1, second digit can be either 2 or 8 i.e. only 12, 18

If first digit is 2, second digit can be 0 or 1 cannot be 8 i.e. only 20 , 21

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5 0
3 years ago
Ella ran 3.6 kilometers. How many meters did she run?
Helga [31]

Answer:3600 Step-by-step explanation:

5 0
4 years ago
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CLASSWORK: #1 WRITE YOUR ANSWER ON PAPER.
morpeh [17]

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4 years ago
The solution x=7 is a solution to which of the following equations? Check all that apply
IRISSAK [1]
The correct answer is D.
X=7
8=7+1
8=8
3 0
3 years ago
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