Question

can some one help/ show me (understand) how to get to the answer?
x + 2 + 3x + 5 + x + 3 + 2x

Answer 1

Add all terms containing 'x' and the numbers together.
By the ways, shouldn't it be something like

x + 2 + 3x +5 + x + 3 + 2x = 0 ?

Answer 2

no thats not have they give it to me in the book. I know what the answer is cause im suppose to simplify it.
I just dont understand how to get the answer or how to do any of this.

Answer 3

I just dont get Pre Algebra or regular Algebra. lol and it really makes me feel dumb

Answer 4

3x + 2x + x + x + 2 + 5 + 3

Just add them together. That's the simplified form I suppose..

Answer 5

It is not a quadratic equation, so I fail to see why that would be the case, Fall12. No, this is merely an expression. The key is to view all of the 'x'-containing figures as compatible terms, meaning it is permissible to add, subtract, divide, multiply, etc. them, and the non-Xes as compatible terms.

Now, when it comes to this particular example, the way to do it is the following:
First, look at all of the terms with an 'x' in them. These are all compatible with each other. In your case, you have x+3x+x+2x. These all add up to 7x, don't they? Precisely.

Next, you look at the terms which are merely ordinary numbers without any variables, in your case: 2+5+3, which, added together, yields 10, no?

Now, you combine the two. What do you end up with? 7x + 10.

And that is how it's done. Math doesn't have to be hard if one tries to think logically and in steps. :)

Answer 6

yes thats what i end up with

Answer 7

Yeah, so we have the final expression then. Just add the like terms together..

@Veritas: I'm listening..

Answer 8

I guess im just confused on how we got a 7x out of it. how did it equal to it.

Answer 9

x + 2 + 3x + 5 + x + 3 + 2x

x + 3x + x + 2x + 2 + 5 + 3
7x + 10

Answer 10

Just add the like terms together :)

Answer 11

i am really lost 2+3+5+2+3=15

Answer 12

When looking solely at the variables, the ones containing X'es, we found that they add up to 7x.

(x + 3x + x + 2x) + (2 + 5 + 3)
= 7x + 10

Answer 13

i dont get the 7 that is what i am saying

Answer 14

You add the ones having 'X' in with them and the ones that don't, SEPARATELY.

Answer 15

The trick is to ONLY look at the figures containing the X'es. 7x+2 = 9, for example, would be incorrect, because 7x means seven multiplied by an unknown.

Answer 16

Whereas 9 simply has a numerical value of 9.

Answer 17

so it would be (4)x's+the 3
that equals 7 and then do the 2+3+5=10 and thats how i get the answer

Answer 18

Exactly! Think of the X-containing numbers as apples, and of the ordinary numbers as oranges. You can't add them together, because they're two different things! You instead have to add them separately. :)

Answer 19

Very good.

Answer 20

ok thank you both very much.

Answer 21

Have fun!