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sergiy2304 [10]
3 years ago
8

If the sum of a number and one is doubled​, the result is three less than the number. Find the number

Mathematics
2 answers:
Sholpan [36]3 years ago
7 0
So if i am doing this correctly your answer should be this

<span>2(n+1) = n - 3

Hope This Helps!!!!
Have a Good Day!</span>
goblinko [34]3 years ago
3 0
Let the unknown number be x.

<span>sum of a number and one: x + 1
</span>
<span>sum of a number and one is doubled: 2(x + 1)
</span>
<span>three less than the number: x - 3

2(x + 1) = x - 3

2x + 2 = x - 3

x + 2 = -3

x = -5

The number is -5.
</span>
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Find three consecutive odd integers so that the sum of twice the first, the second
netineya [11]

Answer: 23, 25, 27

Step-by-step explanation:

Let the 3 consecutive odd numbers be x, x+2 and x+4.

So

2x+(x+2)+3(x+4)=152

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6x+14=152

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7 0
3 years ago
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Fudgin [204]

Answer:

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Step-by-step explanation:

3x-7=4x+10

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3x-7=4x+10

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3x=4x+17

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Divide both sides by -1 & simplify

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3 0
3 years ago
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JulijaS [17]

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