How would I write this as an algebraic expression?

Question

The sum of 17 and twice a number

Answer 1

Heres how to write The sum of 17 and twice a number as an algebra expression

Let's break it down:

1) The SUM- You know this will be an addition expression (+)

2) Twice a number is represented a 2x: the 2 is the "twice" and the x is "a number"

3) include 17

17+2x

Answer 2

Just carefully translate each part of this word problem into numbers:

The first value is (17)

Assume "the number" is (x). So "twice the number" is (2x)

"The sum" is (+)

Compile this interpretation: 17+2x

Answer 3

If you're looking for your homework answer, well you've got it already :).

If you're looking to learn algebra, start asking yourself questions about what you are trying to learn!

Problem: how do I write "The sum of 17 and twice a number"?

Q: What do I know? A: Sum, 17, & twice (means 2-times)

Q: What do I not know? A: number.

Q: What do "known" & "unknown" mean in Math?

A: Knowns are constants, represented by a, b, c,... A constant is a set value & does NOT change value.

Unknowns are variables, represented by x, y, z,... A variable is NOT a set value & change value.

Q: How can I interpret the statement? A: Put what you know in place

Example: sum of 17 and twice a number IS LIKE

+ 17 2 number

Q: What is 17? A: A known constant.

Q: What is "number" here? A: An unknown variable.

Q: Can I try the math now? A: Yes, you got it.

sum of  17 and twice a number is

(+) (17) (2-times) (Y) is

(17) + (2-times) (Y) is

17 + 2Y

It doesn't matter if you use x or y or z or X or Y or Z or ... as long as you understand the context of representing a variable. In other words, you, the solution provider gets to choose the variable names :).

Does this make sense :)?

eh

Answer 4

The sum of 17 and twice a number, and the number being x, this would be expressed as 17+2x.

Why?

Beginning with "twice a number", twice means two times, so (2 * x). This can be simplified as 2x. The sum of 17 and this number means to add 17 and said number. Using 2x as our number the answer would be 17+2x.

Answer 5

Answer: 17 + (2 * x)

"The sum of" indicates that we are adding every number and variable listed after these words so in this case it would be two things, 17 and twice a number.

"Twice a number" means that whatever number we have, which is unknown at this point so we use the variable x, will be multiplied by 2.

Hope this helps!

Answer 6

Let x be the number.

17+2x

Answer 7

In this situation, "sum" indicates that the expression involves addition, and "twice" indicates that a number is multiplied by 2. While you could represent a number as anything, let's call this number x. The expression, then would be 17 + 2x. Remember that, because it is an expression, it is not set equal to anything but is rather standalone.

Answer 8

Write the sum of 17 and twice a number as an algebraic expression, implementing these steps as noted.

Let the number be called x.

Find twice a number which means 2x illustrated as (2 times x).

Now, take the sum of 17 and twice the number which means you add them together.

So, the algebraic expression is 2x + 17

I hope the mathematical calculations (step by step approach) was helpful. Please let me know if you require any more assistance. If anyone in my neighborhood is interested in setting up an in-person math tutoring session. I look forward to hearing from them. Have an amazing day. Doris H.