Questions on Algebra: Distributive, associative, commutative properties, FOIL answered by real tutors!

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Algebra: Distributive, associative, commutative properties, FOIL

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Question 154932: my problem was 4(2x-3)+8(x-4)=2x+6 and the answer that i got was 5.6 how would that be in a fraction?
Click here to see answer by orca(409)

Question 154940: how do you get K in this equation 6(k+2)+(2k-5=22
Click here to see answer by checkley77(7035)

Question 154940: how do you get K in this equation 6(k+2)+(2k-5=22
Click here to see answer by stanbon(26259)

Question 154949: Im very sorry i made a error on my last question the real question is how do you get k in this equation 6(k+2)+2(2k-5)=22
Click here to see answer by oscargut(682)

Question 154958: whoever is answering this question dont answer it please just tell me if i am doing it right
-2=7(q+2)+3(2q-1)
then
-2=7q+14+6q-3
then
im not sure about the rest though can you please help me
Click here to see answer by nerdybill(2446)

Question 155137This question is from textbook Pre-Algebra An Integrated transition to Algebra and Geometry
: I am trying to find and unmderstand how to arrive at the answer of restating 2a+4b using the distributive property. I have other problems that need restating that is why it is important for me to understand how to get the answr as well. I hope you can help me.This question is from textbook Pre-Algebra An Integrated transition to Algebra and Geometry

Click here to see answer by stanbon(26259)

Question 155189: HI!
I just started Algebra 2 this year, and we are reviewing from algebra right now, and I can not remember how to solve a problem where I am isolating a variable. The problem is:
x= 2y^2/5 +1
I am trying to get y alone.
the 2y^2 is all over 5, so its like a fraction. So far, I have put the 1 over with the x, so now it looks like
-1+x = 2y^2/5
Then I multipled the right side by 5, making that drop off, so now it looks like:
-1x= 2y^2. Now, I am stuck...How do I solve from here?

Click here to see answer by stanbon(26259)

Question 155447This question is from textbook College Algerbra in Context
: I am not sure if this belongs here or not.
My question:
How do you solve or what meathod do you use to slove:
(x+h)^2
I thought the answer would be:
x^2+h^2
However, the answer is:
x^2+2xh+H^2
Why is the 2xh in the answer?
And how do you come to get that answer?This question is from textbook College Algerbra in Context

Click here to see answer by jim_thompson5910(13787)

Question 155479: (3x^2 + 11x - 4) ÷ (3x - 1) =
using FOIL how do I do this?
thank you.
Click here to see answer by Earlsdon(4898)

Question 156008This question is from textbook Algebra 1

: (5+n)3This question is from textbook Algebra 1

Click here to see answer by stanbon(26259)

Question 156095This question is from textbook Mathematics: Algebra I
: I need help with a problem. We were told not to convert the fractions into decimal leaving it as a fraction and solving. The problem is as follows:
(10/14)d(8-10h). I put the paraenthesis around the fraction 10/14 to separate it out. Thank you for your helpThis question is from textbook Mathematics: Algebra I

Click here to see answer by checkley77(7035)

Question 156092: can you explain to me what this actually is? I'm trying to understand it in terms of FOIL. here's the equation:
(a + b)2 ¹ a2 + b2
interpret this for me, if you can, thank you.
Click here to see answer by stanbon(26259)

Question 156617: How can I solve this distributive problem???
(104)(9)
Click here to see answer by stanbon(26259)

Question 156679: I have to do a project about the associative property. I need example problems but I don't quite understand it well enough. I already have some simple problems but my teacher wants challenge problems too. Can you give me an example of a challenge problem for the associative property of addition and another for the associative property of multiplication so I can see how to make one. Thank you very much.
Troy
Click here to see answer by Electrified_Levi(103)

Question 156864: 10r-4(12+9r)
Click here to see answer by jim_thompson5910(13787)

Question 156966: 4(8)+9(3a + 5) + 8(2a + 1)
Click here to see answer by jim_thompson5910(13787)

Question 156969: 4(3a) + 2(a + 6b)
Click here to see answer by jim_thompson5910(13787)

Question 156970: 3[9(x + 4) + 2(x + 1)]
Click here to see answer by jim_thompson5910(13787)

Question 157018: 3x2 + 25x - 18
Click here to see answer by checkley77(7035)

Question 157572: 3(12-2)*4
Click here to see answer by jim_thompson5910(13787)

Question 157866This question is from textbook Prentice Hall Algebra 1
: 9y<81This question is from textbook Prentice Hall Algebra 1

Click here to see answer by jim_thompson5910(13787)

Question 157820This question is from textbook
: iam new to algebra, i cant figure out how to work diamond problems, please help, with the fundamentals.This question is from textbook

Click here to see answer by nerdybill(2446)

Question 158302This question is from textbook Alg 1
: 1)2x+3y+z 2) -3x-2z-7 3) ( -Z'3-2z+z (-Z 3 is third power))-2z+z

4)__xy-3z_____________ variables x=3,y=-1,z=2
-5This question is from textbook Alg 1

Click here to see answer by midwood_trail(310)

Question 158300This question is from textbook Alg 1
: 2x+3y+z -3x-2z-7 ( -Z'3-2z+z (-Z 3 is third power))-2z+z

__xy-3z_____________ variables x=3,y=-1,z=2
-5This question is from textbook Alg 1

Click here to see answer by midwood_trail(310)

Question 158299This question is from textbook Alg 1
: 2x+3y+z -3x-2z-7 ( -Z'3-2z+z (-Z 3 is third power))-2z+z

__xy-3z_____________
-5This question is from textbook Alg 1

Click here to see answer by midwood_trail(310)

Question 158661: -2(x-6)+7=35
Please show me an example of work in order of solution. Confused about how to use distributive propery with negative numbers.
This is what work I have done. Am I on track?
-2xX =-2x
-2x6=-12
12+7=19
35-19=16
H E L P, PLEASE
Click here to see answer by nica_021794(8)

Question 158763: i need help with the distributive property.......please anyboby if you can please email me ok.....My Name is Shante..
9th grader thank you
Click here to see answer by ankor@dixie-net.com(6691)

Question 159145: Thank you for any help you can provide for this question:
" Deanne bought 6 tee shirts at $8.95 each. She figured out her total purchase using a shortcut: (6)($9) - (6)($.05) = $53.70. Her shortcut is an illustration of which property? Explain."

Click here to see answer by nerdybill(2446)

Question 159257: Please show me how this was solved, step by step
(mn)^5=m^5n^5
(n^2)^5=n^2x5=n^10
I don't understand how/why m disappeared, thank so very much!

Click here to see answer by Alan3354(6059)

Question 159269: 14(1002)

Click here to see answer by jim_thompson5910(13787)

Question 159487: Use the distributive property to factor the following. x2 + xy
Click here to see answer by jim_thompson5910(13787)

Question 159599: HOW DO I WORK THIS OUT

-2(2g - 6) = 10
Click here to see answer by KnightOwlTutor(292)

Question 159651: Please help me solve this problem step by step. I have spent more than 3 hours between 2 days on it. I have come up with several different answers and when I do the check they never work out. (x= 2.14, x=4, x= 1.25)
5[2-(2x-4)] = 2(5-3x)
5[2(-2x+4)] = 2(5-3x)
5(-4x+8) = 10-6x
-20x+40 = 10-6x
-20x+6x+40 = 10-6x+6x
-20x+6x+40 = 10
-14x+40 = 10
-14x+40-40 = 10-40
-14x = -30
x=2.14
I have done it several different ways. If you could help I would greatly appreciate it. Thank you!
Paula Roberts
Click here to see answer by Alan3354(6059)

Question 159664This question is from textbook Introductory Algebra
: Please help me figure this out step by step. Spent over 2 hours on this one. I know it's something easy I am missing.. What is "x"?
(-4)[x-2(2x-3)]+1 = 2x-3
Thank you so very much!This question is from textbook Introductory Algebra

Click here to see answer by nerdybill(2446)

Question 159833: Write an equivelent variable expression: -5(4j-1)
Click here to see answer by jojo14344(1483)

Question 159903: i need help with finiding out the properties of the following:
1.7+(8+3)=(7+8)+3
2.rw=wr
3.6+3c=3(2+c)
Click here to see answer by nerdybill(2446)

Question 160085: i need examples of distributive property with variables
Click here to see answer by jim_thompson5910(13787)

Question 160070: Anna is 12 years older than her brother. Six years from now, the sum of their ages will be 32. Find anna's present age
Click here to see answer by nerdybill(2446)

Question 160215: Paperback books are on sale for $3.95 each including tax. Explain how you could use the Distributive Property to mentally calculate the total cost of buying 7 paperback books.
Click here to see answer by Fombitz(2113)

Question 160416This question is from textbook saxon algebra 2
: A. Create matrix A such that a11=4, a12=6, a21=0, and a22=-1.
B. What is the additive inverse of A?
p.s. a11= an a with the 11 written like the opposite of a^11This question is from textbook saxon algebra 2

Click here to see answer by jim_thompson5910(13787)

Question 160393This question is from textbook saxon algebra 2
: Two students are asked to simplify an expression and identify which property was used for each step. Identify which student has an error in the procedure and correct the error. Simplify (4+2)*10.
Student A: (4*10) + (2*10) Assoc. Prop. Student B: 6*10 Add
40 + 20 Distrib. 60 Multiply
60 Add

This question is from textbook saxon algebra 2

Click here to see answer by jim_thompson5910(13787)

Question 160420This question is from textbook saxon algebra 2
: Write a function that represents the data set (-4, 9), (0, 1), (1, -1), (3, -5),
(4, -7).This question is from textbook saxon algebra 2

Click here to see answer by ankor@dixie-net.com(6691)

Question 160757: How do I expand the following to include all stages:
2
(x+2)(x + 7)
Hope you can help me.

Click here to see answer by Fombitz(2113)

Question 160797: I also need help with theese three if you dont mind me asking for it.
4(3 − 2) = 4(3) − 4(2)
9 + 8 = 8 + 9
4 + (2 + 6) = (4 + 2) + 6

Click here to see answer by KnightOwlTutor(292)

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