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Q: What the correct algebraic expression for twice the sum of 15 and a number?

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2n

2b

2z

(10)(2x)

15 - 2x

2x+3

As an algebraic expression it is: 2x-9

2x+15

The algebraic expression for three more than a number is: X + 3

If ' x ' is your number, then the quotient is 2x/6.

The algebraic expression is 2m+6

eight less than twice a number

2x-3

2(n+7)

2x = 76 x = 38

As an algebraic expression this is written 2x - 12, where x is the unknown number.

The corresponding expression would be 2x - 6 = 4.

It is simply: 2x

2x-3 , where x is the number referred to in the question

x / (2y - 7)

Let's call "a number" x. Twice that number would be 2x, and then add 27, so the expression would be 2x + 27.

2x+3

Let the unknown number be x and so the algebraic expression is: 2x -13

This is an algebraic expression. It can be written as 3(2x + 4)

2 x = 8 + 4x

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