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

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Question 501972: 42+17=17+42
Click here to see answer by rfer(12657)

Question 502232: how do i solve 2x-5(x-3)=2(x-10). Show work. answer is 7 but i cannot get it

Click here to see answer by Earlsdon(6287)

Question 502230:
Click here to see answer by candy423(2)

Question 503462: factor;
c^2+6c+9=
Click here to see answer by MathLover1(6632)

Question 504341: What is the main thing I need to remember when I am solving equation problems. I have a test coming up on this tomorrow and I really really need some help.
Click here to see answer by jim_thompson5910(28595)

Question 505412: i have worked this problem 5 times and come back to 0 each time, but the teacher marks it wrong..Please help me understand what I am doing wrong.Thank you very much.'
40/5(3-1)-4 Original Problem and below is my work / = divide
40/5x2-4
40/10=4
4-4=0
Click here to see answer by Taxie(4)

Question 506070: Whats the property of a+(b+c)=(a+b)+c ; a+b=b+a ; a(b+c)=ab+ac ; and a+0=a
Click here to see answer by sararosebrandow(1)

Question 506654: Name the property illustrated 5(6+3)=(5x6)+(5x3)
Click here to see answer by richard1234(5390)

Question 507097: I have to know the property for this equation: 17(1/2+1/4=17(1/2)+17(1/4). I can not figure out which property it is i do not understand.
Click here to see answer by richard1234(5390)

Question 507390: Simplify using the distributive property
(3x^2+2y)^2
answer is 9x^4+12x^2y+4y^2
I understand the 9x^4 and the 4y^2 but where does the 12x^2y come from?
Click here to see answer by scott8148(6628)

Question 26724: Please help me solve this equation: 2=n-(2n+3). I need to find the value of n. The book has the answer in the back for reference but I keep coming up with the wrong answer. This is the solution I got:
2=n-(2n+3)
2=n-2n+3
2=1n+3
-3=1n-3
-1/1=1n/1 n=1

Click here to see answer by shorty33353(1)

Question 507852: -2(2x-8)
Click here to see answer by Earlsdon(6287)

Question 508040: The product of 4 and a number is 16.
Click here to see answer by MathLover1(6632)

Question 508104: indentify the property illustrated by the statement (14*7)*x=14*(7*x)
Click here to see answer by stanbon(57347)

Question 508309: "What is the counterexample for: The repeating decimals are closed under subtraction.
Click here to see answer by richard1234(5390)

Question 508773: I can't solve this problem, can you help me? Your correct answer will help me understand what I am doing wrong. Thank you.
-8n-8(-4-2n)
Click here to see answer by oberobic(2304)

Question 509008: -6+3x=-42
Click here to see answer by jim_thompson5910(28595)

Question 509017: 5x+6=2x+9
Click here to see answer by jim_thompson5910(28595)

Question 509565: Ok my teacher explained this to us, but she didn't explain the problems like the one in the following. Can you please help me solve it but, ill show you how i think its done too:
The instructions are: Use the distributive property to write each
expression as an equivalent algebraic expression.
(9-h)5 = 5(9)+ 5(h)
45+5h

Click here to see answer by edjones(7569)

Question 509638: How do I use the Distributive Property to write this expression as an equivalent algebraic expression? (9-h)5
Click here to see answer by Earlsdon(6287)

Question 510224: 2+3(x-4)
Do I do 3x and 3*-4 first,
or add 2+3 and then multiply 5x and 5*4?

Click here to see answer by stanbon(57347)

Question 510602: Factor 3w^2-8w-3
Click here to see answer by lwsshak3(6505)

Question 511251: step by step solution for:
m/n , for m = 54 and n = 9
Click here to see answer by Alan3354(30993)

Question 511029: 7=-2x+7
Click here to see answer by ankor@dixie-net.com(15652)

Question 512370: please help -6qp+5pq+7-4qp-4pq-9..is -10qp+1pq-2 the correct answer
Click here to see answer by stanbon(57347)

Question 512713: how would I solve -n-5(-6-7n) using the distributive property if I don't know the variable's value?
Click here to see answer by rfer(12657)

Question 512700: i need help with my homework and i was just wondering if you guys can help me
Click here to see answer by oberobic(2304)

Question 512801: I need help with algebra for my 7th grade son:( example algebra properties 3(5+1) I have no idea what to do? THNX Marlen desperate mom!!
Click here to see answer by mananth(12270)

Question 513249: Please, help....
Evaluate each expression. Name the property used in each step.
1). (8-2^3)+21
2). 3(1/3)•9
3). (5/(3•1))3/5
4). 18+35+32+15
5). 0.25•7•4
Please help me on these 5 questions. As soon as you can!
Thank you so much.
Click here to see answer by stanbon(57347)

Question 513270: How can rewrite (2z)0 and what properties will be used?
Click here to see answer by solver91311(16885)

Question 513509: 8x - 9x + 2(-3s - 4) if x=-8
-4(4 + 7y) + 5 + 3y if y=2
5(-m - 3) + 4m - 10 if m=-5
-1 + 9(4d - 2) - 6d if d=-1
6 - 2y - 6(-3y + 7) if y=3
-8(9 + 2k) + 8k + k if k=6
-w - 5 + 5(-5w +9) if w=1
Click here to see answer by solovelyy<3(3)

Question 513863: What does X equal to in 6x + 5x + 20?
Click here to see answer by stanbon(57347)

Question 514739: Use distributive property to rewrite expression:
(3-y)y
Click here to see answer by jim_thompson5910(28595)

Question 515015: How do you foil in reverse? When two numbers multipled together equal the last number of the equation and then the same two numbers must add up to te number in the middle of the equation. Is there a trick to solving these? Example:29y+41+50
Click here to see answer by josmiceli(9678)

Question 515106: How do I apply the distributive property to the expression if the expression is 5(n+d)
Click here to see answer by stanbon(57347)

Question 515138: which property does the equation below demonstrate

23 / 1 = 23
Click here to see answer by daffy_duck(3)

Question 515206: how do u solve 10+1/3 (1 +x) +{2-(4x-7)} thank you .. please show step by step..thanks
Click here to see answer by deborabr(181)

Question 515169: If a ≠ 0 and the sum of x and 1/a is 0, then?

Click here to see answer by jim_thompson5910(28595)

Question 515169: If a ≠ 0 and the sum of x and 1/a is 0, then?

Click here to see answer by oberobic(2304)

Question 515069: -4(x-4y-8z)=
Click here to see answer by jim_thompson5910(28595)

Question 515420: Use the FOIL method to find the product.
(7x^2-5)(x^8-6)
Click here to see answer by algebrahouse.com(1079)

Question 515799: The expression 30(20 + 7) is equal to which of the following expressions, according to the distributive property of real numbers?
Click here to see answer by tracyc0912(40)

Question 516075: 5(x-7)-(2x-9)
Click here to see answer by rfer(12657)

Question 516472: which property is this 87+0=87
Click here to see answer by deborabr(181)

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