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 84841: addition Property of equality: I'm not sure of the correct answer
x+y=13
22x + 36y = 356
Click here to see answer by checkley75(3666)

Question 84933: -(-6m-2K-8) I don't understand what to do when there is only a negative sign at the beginning of the problem with no number next to it. Thanks.
Click here to see answer by Earlsdon(4898)

Question 85743: Can someone help me with finding the "Given expression,indentify the terms,like terms,coeffcients,and constant terms.
4k - 10 - k
I soo dont understand this
Click here to see answer by scianci(186)

Question 85742: Can someone help me "Use The Distributive Property to write an equivalent variable expression" for this question please??
-6(3y - 1)

Click here to see answer by scianci(186)

Question 85741: Can someone help me "Use The Distributive Property to write an equivalent variable expression" for this question please??
(5 - a)(-7)

Click here to see answer by scianci(186)

Question 85739: Can someone help me "Use The Distributive Property to write an equivalent variable expression" for this question please??
2(z + 8)
I soo dont understand this
Click here to see answer by scianci(186)

Question 85876: Can Someone help me with this equation,Im supposed To:
Use the distributive property to write an equivalent variable expression
2(z + 8)
Click here to see answer by uma(370)

Question 86542: Can you factor this so I can check my work and did it properly please? I really appreciate your help.:
x^2 - 9x = -8
Click here to see answer by Nate(3495)

Question 86590: Need to figure dimensions of a rectangle with we know the area and that one side is 26 ft longer than 5 times the other side. So - started by saying one side is X and the other is 5X plus 26. Then wrote the formula as x (x plus 26) equals 427. I ended up with 5X squared plus 26X equals 427. I'm able to figure the answer in my head, but can't for the life of me figure out the equation that solves the problem. I'm trying to help my wife with her homework here and I'm a huge disappointment. Can you please help?
Click here to see answer by stanbon(26259)

Question 89024: 7-(-y-5)= 2(y+3)-6(y+1)

want to know if I should distributive only the neg. sign to the -y or the 7
at the beginning of the problem, I came up with 5 over 11y
but text book states -12 over 5
Click here to see answer by malakumar_kos@yahoo.com(315)

Question 89172: please help me figure out this problem. I think I know the answer but I cant figure out how to get there. [3x-2y]^2. I can only come up with 9x^2+4y^2. please help.
Click here to see answer by Earlsdon(4898)

Question 89253: What is the distributive property to write an equivalent variable expression.
14. -6( 3y - 1 )
Click here to see answer by stanbon(26259)

Question 89252: What is the distributive property to write an equivalent variable expression.
( 5 - a )( -7 )

Click here to see answer by stanbon(26259)

Question 89250: 12.Use the distributive property to write an equivalent variable expression.
2(z + 8)
Click here to see answer by THANApHD(104)

Question 91745: What property justifies these steps?
6a + (8b +2a)
=(6 + 2a) +8b
=8a + 8b

8a^2 + (8a+a^2) +7a
=(8a^2 + a^2) + (8a +7a)
Click here to see answer by mathispowerful(115)

Question 92386: (x-2)(x+3)=(x-4)(x-5)
Click here to see answer by stanbon(26259)

Question 92594: factorial for X^2-2x^2y^2+y^4. can anyone solve it.
Click here to see answer by stanbon(26259)

Question 92663: 6(4y+3)
Click here to see answer by checkley75(3666)

Question 92809: Factor completely: 16x4 – 40x2 + 9
Click here to see answer by checkley75(3666)

Question 92883: can you name the property illustrated by each
1.x + y = y + x
2.k + 0 = k

Click here to see answer by stanbon(26259)

Question 92891: can you help me name the property illstrated by each statement
5. 6 (u + 2v) = 6u + 12v

2. 5(m)(n) =5(m)n
7. (2a + 3b) + 4c = 2a + (3b +4c)

4. 3t + 2r = 2r + 3t
6. 0 = 100(0)
9. gx =xg
8. pq + n = qp + n
10. 15(c + d) = 15(d + c )
Click here to see answer by chitra(359)

Question 92956: Use the indicated property to write an expression that is equivalent to the following expression.
(7 • 5)•2 (associative property of multiplication)

Click here to see answer by jim_thompson5910(13787)

Question 92960: Simplify: –(–28).
Click here to see answer by jim_thompson5910(13787)

Question 92906: 5x+4y=6
Click here to see answer by tutorcecilia(2042)

Question 93006: 2(b+4)+8b= my work is this correct 2 x b+2 x 4+8b
=2b+8+8b
=18b

Click here to see answer by stanbon(26259)

Question 93033: i need help with this 5(4x+2)

Click here to see answer by HayleyAlyce(8)

Question 91578: is c+(a+b)=(a+b)+c an example of the commutative property? is (a*b)c=a(b*c) also an example of commutative property?
Click here to see answer by HayleyAlyce(8)

Question 93789This question is from textbook algebra

: What experession reaised to the fourth power is 81x^12y^8z^16?This question is from textbook algebra

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

Question 94011: 3 3/4x 3 1/3x 16=
Click here to see answer by elizaldecalaunan(5)

Question 94377This question is from textbook Algebra 1

: The expression 2(l+ w) may be used to find the perimeter of a rectangle. What are the length and width of a rectangle if the area is 13 1/2 square units and the length of one side is 1/5 the measure of the perimeter?This question is from textbook Algebra 1

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

Question 94382This question is from textbook

: How do you solve equasions with variables on both sides??????This question is from textbook

Click here to see answer by jim_thompson5910(13787)

Question 94472: I Need help evaluating this expression 13+23+12+7
Click here to see answer by cjmom(1)

Question 94966: Hi! I keep doing this problem but it will not work for me and I don't know what I'm doing wrong.
[5(-x-8)-20] - [5-3(x-5)+19]
Can you show me the steps too?? Please and thank you. I need this by tonight if that would be alright.
Click here to see answer by bucky(1732)

Question 95004: -3x^2( x^5 ( x+3) -4x(x^2-5)+50)
Please help me with this one! I have no idea what I'm supposed to do.Please and thank you soo much!
Click here to see answer by edjones(3291)

Question 95042: List the terms of the expression:
3y + 10x - 12 + xy
Click here to see answer by tutorcecilia(2042)

Question 95128: Computation review:
(-7) - (-5) =
Click here to see answer by checkley71(8405)

Question 95161: i need help with (2k+1)7. this is distributive property. its usually a number in front of the parenthesis but for this particular problem there is not so i am really confused
Click here to see answer by stanbon(26259)

Question 95115: what is the oppisite and reciprocal of -0.01
Click here to see answer by ankor@dixie-net.com(6691)

Question 95214: The question begins: "State the property that justifies each step when simplifying the expression":
3x + (5 + 6x) = 3x + (6x + 5) __________
= (3x + 6x) + 5 __________
= (3 + 6)x + 5 __________
= 9x + 5 __________
They all seem to be the associative property of addition, but that seems too easy. Any clue?
Click here to see answer by jim_thompson5910(13787)

Question 95310This question is from textbook Mathematics
: How do you use the distributive property?This question is from textbook Mathematics

Click here to see answer by lizethruiz00@yahoo.com(3)

Question 95309This question is from textbook Mathematics
: How do you use the distributive property?This question is from textbook Mathematics

Click here to see answer by stanbon(26259)

Question 95391: I need help with the Distrubutive Property, for instance this question is giving me trouble.
1(a+2j+12k)
Suggestions? Thanks.
Click here to see answer by lizethruiz00@yahoo.com(3)

Question 95405: Ok again i am stomped, :(. So any help is appreciated. Problem is as follows:
2(3m+1)+4m
Click here to see answer by checkley71(8405)

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