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## 6th grade

### Unit 6: Lesson 8

Writing algebraic expressions introduction- Writing basic expressions with variables
- Writing algebraic subtraction expressions
- Writing basic expressions with variables
- Writing basic expressions with variables
- Writing expressions with variables
- Writing expressions with parentheses
- Writing expressions with variables & parentheses
- Writing expressions with variables
- Writing expressions with variables

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# Writing expressions with variables

Learn to write expressions for more challenging phrases like "8 less than the product of 7 and x."

## Now, let's practice!

## Want to join the conversation?

- How do you know what part to put first or last? It isn't specified.(10 votes)
- You may put it in any order, but I would recommend that you write the expression with whatever comes first.

What I mean by that is this:

Suppose you have to write an expression from this description:*six added to the product of 4 and y*

You can write it like this:

4y + 6

Or like this:

6 + 4y

Unless it is subtraction, you can write it in any order you choose. I like how the first answer sounds, but I would prefer the second answer because it is in the order that the question is written in, to double-check my work. But yes, you can do it any way you wish.(3 votes)

- Why would adding and multiplying variables be helpful in every day life(0 votes)
- You're going to a comedy club that has a fixed cover charge and a two-drink minimum. How much cash do you need to take with you?

Your truck has its fixed empty weight and is carrying a number of bags of concrete mix. Will you be able to drive over that rickety old wooden bridge?(2 votes)

- what does it mean by eight less?(6 votes)
- Eight less than a number means 8 subtracted from the number. So 8 less than x means x-8 (but not 8-x).(8 votes)

- You would do if it says 8 less than 10 then put it at the end like 10+8 or 6 more than 7 then 7+6(6 votes)
- How do you do it it’s very hard😩(4 votes)
- what are you confused on? What part of the math?(4 votes)

- What if you get confused in the negative sign and the subtraction sign?(5 votes)
- Q1: Write an expression that means "eight less than the product of seven and x".

can it not be written as 8-7x

?(2 votes)- Well, If you want 8 less than 7x, you take away 8 FROM 7x. The reason because if you want to take away 1 from 10, you would do 10-1 not 1-10.

If you get what I mean.(1 vote)

- how to make a word to expressions(3 votes)
- when sal wrote the expression 4(2(7+2x)) can't he write,4(2(7+2x)? cant he take one parenthesis off?(2 votes)
- brackets must be paired with each other. That is for each left bracket there must be a right bracket.(2 votes)

- Hi, "the sum of six and the product of three and d" is (3 x d) + 6

Correct?

It said is was not(1 vote)- It likely doesn't like the "x". It would assume the X is a variable.

You need to write it as:`3d + 6`

or`3*d+6`

The 1st version is better because it is the preferred format.(3 votes)