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the algebraic expression for "the difference between seven times a number and three that number"?
Weegy: An algebraic expression is one or more algebraic terms in a phrase. It can include variables, constants, and operating symbols, such as plus and minus signs. It's only a phrase, not the whole sentence, so it doesn't include an equal sign. [ Algebraic expression: 3x2 + 2y + 7xy + 5 In an algebraic expression, terms are the elements separated by the plus or minus signs. This example has four terms, 3x2, 2y, 7xy, and 5. Terms may ... (More)
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Asked 7/24/2012 8:20:57 AM
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what is the algebraic expression for "the difference between seven times a number and three that number"? 7 -3x 7x- 3 7x- 3x
Weegy: 7x-3x (More)
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Asked 7/24/2012 8:23:23 AM
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Simplify. (-5.12) - (-4.7) (7.021)
Weegy: 6.601. In the order of operations, addition and subtraction are solved from left to right, not in any particular order. (More)
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Updated 7/24/2012 9:40:57 AM
1 Answer/Comment
Simplify. (-5.12) - (-4.7) (7.021)

Remember the order of operations PEMDA Parenthesis, Exponents, Multiply and divide, Add and subtract.

First multiple -4.7*7.021 to get a -32.9987
this leaves -5.12 - (-32.9987)
-5.12+32.9987
= 27.8787 rounded to two decimal places is 27.88
Added 7/24/2012 9:41:00 AM
7 +8(x4 -8) =7
Question
Education|No Subcategories|Not Answered
Updated 7/25/2012 2:21:20 PM
5 Answers/Comments
7 +8(x4 -8) =7
7 + 8(x^4) - 8(8) = 7
7 + 8x^4 -64 = 7
7 -64 + 8 x^4 = 7
-57 + 8x^4 = 7
-57 + 57 + 8x^4 = 7 + 57
8x^4 = 64

8x^4/8 = 64/8

x^4 = 8
sq rt of x^4 = sq rt of 8
x = 2.8284 or 2.83
Added 7/24/2012 9:47:19 AM
x= 1.6818, -1.6818
Added 7/24/2012 10:18:40 AM
x = 2
Added 7/25/2012 12:21:11 AM
x=2
Added 7/25/2012 8:48:30 AM
The asnwer is x=2.
Added 7/25/2012 2:21:32 PM
y4 · y6
Question
Education|No Subcategories|
Updated 7/24/2012 1:17:28 PM
1 Answer/Comment
y4 · y6 = y^10
Added 7/24/2012 1:17:28 PM
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