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SVEN [57.7K]
3 years ago
6

2 is added to twice a certain number and the sum is doubled .the result is 10 less than 5 times the original number​

Mathematics
2 answers:
Rom4ik [11]3 years ago
8 0

<u>Answer: </u>

2 is added to twice a certain number and the sum is doubled. The original number is 14

<u>Solution:</u>

Let x be the original number

Given that the 2 is added to twice of x. This can be represented as (2 + 2x)

Now it is given that the sum is doubled which means 2(2 + 2x)

The result is 10 less than 5 times the original number "x" which means 2(2 + 2x) = 5x - 10

The above expression is solved to get the value of original number

2(2 + 2x) = 5x - 10

4 + 4x = 5x - 10

On rewriting the above expression, we get

5x - 10 -4 -4x = 0

x - 14 = 0

x = 14

Hence the original number is 14

julia-pushkina [17]3 years ago
3 0

Answer:

14

Step-by-step explanation:

2(2n + 2)= 5n - 10

4n + 4 = 5n - 10

n=14

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