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Orlov [11]
3 years ago
8

the product of 7 and a number increased by 3 is equal to twice the number subtracted from 39 find the number

Mathematics
2 answers:
Vanyuwa [196]3 years ago
4 0
Say x is the number

7x +3 = 39 -2x
Add 2x to each side
9x +3 =39
Subtract 3 from each side 
9x =36
Divide by 9 on each side
x=4

Hope this helped
Neporo4naja [7]3 years ago
4 0

Answer:  The required number is 2.

Step-by-step explanation:  Given that the product of 7 and a number increased by 3 is equal to twice the number subtracted from 39.

We are to find the number.

Let x represents the given number.

Then, according to the given information, we have

7(x+3)=39-2x\\\\\Rightarrow 7x+21=39-2x\\\\\Rightarrow 7x+2x=39-21\\\\\Rightarrow 9x=18\\\\\Rightarrow x=\dfrac{18}{9}\\\\\Rightarrow x=2.

Thus, the required number is 2.

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To find the LCD of two rational expressions, we factor the expressions and multiply all of the distinct factors. For instance, if the factored denominators were (x+3)(x+4) ( x + 3 ) ( x + 4 ) and (x+4)(x+5) ( x + 4 ) ( x + 5 ) , then the LCD would be (x+3)(x+4)(x+5) ( x + 3 ) ( x + 4 ) ( x + 5 ) .

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1 year ago
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makvit [3.9K]

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2. 3/4 x 5/9 = 3x5/4x9 = 15/36 = 5/12

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5 0
3 years ago
Read 2 more answers
How can you quickly calculate 20 percent of any bill amount?
Nikitich [7]
There are several ways in solving quick the 20% of any bill. One of those ways is by getting first the 10% of the amount then will later on be multiplied by two. Another one is by simply dividing the total bill amount by 5, which also 20% of the total bill amount. Hope this helps.
4 0
3 years ago
8% of 44 show work please and an answer ciz i domt understand
nalin [4]
Hey there! 

These are the steps involved in answering the question:

Change 8% into a decimal. To do this, just move the decimal place, 2 places to the left.
You get 0.8

Now, multiply 0.8 by 44. 
0.8 x 44 = 35.2

So, the final answer is: 35.2.

<span>(If you feel that my answer has helped you, please consider rating it and giving it a thank you! Also, feel free to choose the best answer, the brainliest answer!)
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<span>Thank you for being part of the brainly community! :D</span>
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