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

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Question 550827: Combine like terms. Use distributive property to simplify the algebraic expression. Show the work.

1. 8x+24
2. 12x -30x
3. 21x-7x

4. 36x + 15x

Whats a sentence you can se to write a simple rule that you can use to add or subtract like terms?
Click here to see answer by JBarnum(2044)

Question 550822: You can divide the rectangle and find the area of two rectangles then find the area of each rectangle and add to the total.
Area = (8 foot)(20 feet) + Area (8 feet)(3 feet) Find both areas. Which area is hearder to find. Show all your work so I will know how to do it.
Click here to see answer by JBarnum(2044)

Question 550864: what property is this (x+5)+9=x+(5+9)
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Question 551144: 3(x-4)=5x+8
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Question 551625: Write an expression equivalent to 3(x+y)using the commutative property of addition

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Question 551625: Write an expression equivalent to 3(x+y)using the commutative property of addition

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Question 552204: How to factor: x^2 +6x+40?
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Question 553078: Simplify using the commutative and associative properties: (2x + 7) + 5x

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Question 553248: How you rewrite bthe following expression using distributive property without simplifying?????
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Question 553762: 2*(7*5)=(2*7)*5 exemplifies which property
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Question 553759: 2+5=5+2 exemplifies which property
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Question 553994: which is an example of distibutive property ?
A. (5-2)+3=(-2+5)+3
B. 5(2-3)=5X2-5X3
Click here to see answer by Theo(3458)

Question 554710: what is the answer to 2x squared equals 8
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Question 554760: 3(x-10y) + 7(9x+2y)
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Question 555210: 1. Use the commutative property to write an expression that is equivalent to 3 +(-5)

2. show whether -7+2 is the same as 7+(-2)
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Question 555283: (3x-2y)^2
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Question 556310: 3(x-7)
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Question 556314: Factor completely. 16x2 – 4
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Question 557275: -9(-v-2w-6)Use the distributive property to remove the parentheses
Click here to see answer by bluemockingjay7(41)

Question 557355: I need help with this problem please (sqrtx+7)(sgrtx-7)=?
Click here to see answer by Theo(3458)

Question 557980: Define a variable, write an equality, and solve. The sum of a number and three is less than nineteen less than the number. I did not understand this one bit, hopefully you do.
Click here to see answer by Theo(3458)

Question 558024: q.b=
complete the equation to the right of the equal sign,to illustrate the commutative pproperty of multiplication
Click here to see answer by Theo(3458)

Question 558450: Is this a distributive property 4(7+1)=4*7+4*1
Click here to see answer by nerdybill(6948)

Question 558442: would x(yz) = y(xz) be associative property of multiplication?
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Question 560570: factor x^2-18x+81
Click here to see answer by jim_thompson5910(28476)

Question 561239: Please help me factor trinomials with the form axsquared + bx +c.
An example 7xsquared +17x+6. Any help is greatly appreciated. Joey
Click here to see answer by jim_thompson5910(28476)

Question 561530: I'm working on simplifying each product using FOIL. Please help me solve this equation: (x-7)(x+9)using FOIL?
Click here to see answer by rfer(12644)

Question 561659: what property is (15+4) + 9 = (4+15) + 9
Click here to see answer by jim_thompson5910(28476)

Question 562792: what property does is this, (1)(4y)=4y
Click here to see answer by issacodegard(60)

Question 563159: I'm trying to find the perimeter of a rectangle when the length is x + 25 and the width is 2x
Click here to see answer by jim_thompson5910(28476)

Question 563165: solve the equation
6k + 2 = 26
Click here to see answer by Alan3354(30959)

Question 563308: What property is used in 2-2?
Click here to see answer by richard1234(5390)

Question 563560: If the parentesis are missing, how do you solve 3-5*4+2? Is it -17? Thanks
Click here to see answer by mananth(12270)

Question 564461: Multiply. Show all of your work and be sure your answer is in simplest form.
-3/4 * -18
Click here to see answer by stanbon(57219)

Question 564936: Hello,
First of all thank you for this site!
My question is 1/3(4z-3)=4x-5. I have the answer as z=3x-3 from the book, but I don't know why. I can do distributive, and communitive property to solve for a variable in an equation with out an equal sign in the middle like:5(y+6)-4(1-y) is 9y+26, but I don't know what to do when there is an equal sign in the equation; unless it's something like solve for x: 4x+12=4+24. 4x=4+12 4x=16 x=4.
Thank you for any assistance, I have an exam tomorrow.
Nicole
Click here to see answer by htmentor(788)

Question 565109: Rewrite the following expression using the Distributive Law.

-5(v - 2x + 3)
would (-5v - 2x + -15) be the answer?
Click here to see answer by jim_thompson5910(28476)

Question 566111: if x+y=13
x.y=36
what is x and y
Click here to see answer by Alan3354(30959)

Question 564416: 9x+14=6x-13
first move like terms to the same side.
9x+14-6x=6x-13-6x (whatever you do to one side you must do to the other)
3x+14= -13
3x+14-14= -13-14 (this isolates 3x)
3x=-13-14
3x=-27 (-13-14 start at minus 13 then subtract another 14(do not confuse with --))
divide both sides by 3
3x/3=-27/3
x=-9

Click here to see answer by ianhendry(1)

Question 567955: give exact and approximate solutions to three decimal places. y^2-8y+16=49
I have tried and cannot work it out correctly
Click here to see answer by Earlsdon(6287)

Question 568698: what is the original algebraic expression of -8(10s)+(-8)(10t)
Click here to see answer by stanbon(57219)

Question 568760: The volume of a rectangular Chinese box is given by the formula V=LWH. The volume of the box shown on the right is 189 cu. units. Find the width and length.
Click here to see answer by solver91311(16868)

Question 569116: x
__ = 10
8
Click here to see answer by jim_thompson5910(28476)

Question 568818: Perform the indicated operations:
-42÷6+(-7)
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Question 568341: 7x-8+9x-5
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