Questions on Algebra: Evaluation of expressions, parentheses answered by real tutors!

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Question 596760: simplify the expression: 12d+6d-4d
Click here to see answer by jim_thompson5910(35256) About Me 

Question 597042: 6x+2y+3x-9y
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Question 597043: x+3-2+5x=10
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Question 597044: Find the solution set of the equation |2x - 10| + 7 = 5.
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Question 597045: How to show that the equation x^2 + px -q^2 = 0 are real for any real numbers p & q? Thanks
Click here to see answer by jim_thompson5910(35256) About Me 

Question 597284: the sum of twice a number, -1, five times a number, an -12
Click here to see answer by solver91311(24713) About Me 

Question 597989: i dont know what to do first in this equation: 3(2x-4)^2
Click here to see answer by josmiceli(19441) About Me 

Question 599585: I am returning adult student to college, and would like to refresh my memory.
How can I simplify 5x2-(2+13)/3+2-5+6.
Any help would be gladly appreciated.

Click here to see answer by stanbon(75887) About Me 

Question 599799: what is (2.49*10 to the 4th power)/(3.0*10 to the 2nd power) written scientific notation?
Click here to see answer by rfer(16322) About Me 

Question 600899: add: (8/(6x+24)) + (1/(30x+180))
Click here to see answer by Nihal@SriLanka(22) About Me 

Question 600930: john has t tapes and james has ten tapes more than john.Express,in terms of (t), the number of tapes james has.
b.john gives james 14 of his tapes.James now has twice as many tapes as john has.
write an algebraic expression to represent the amount eavh person has

Click here to see answer by Edwin McCravy(20060) About Me 

Question 601219: simplify 18/24 fraction
Click here to see answer by jim_thompson5910(35256) About Me 

Question 601381: How can I simplify: (4 sqrt(6))/ sqrt(30). Step by step answer please!
Click here to see answer by KMST(5328) About Me 

Question 601686: 15-3 (2+1)= and how did you get that
Click here to see answer by Alan3354(69443) About Me 

Question 603258: (-x)2 -5x, for x=-3
Click here to see answer by lynnlo(4176) About Me 

Question 603800: Convert (BADFACED) 16 from its hexadecimal to its binary expansion , and convert (111 1111 0101 1100)2 from its binary to its hexadecimal expansion.
Click here to see answer by Alan3354(69443) About Me 

Question 603912: how would I evaluate this problem:
6(3p-2)-(5p+1)

Click here to see answer by rfer(16322) About Me 

Question 604000: How do I solve this problem
3(5+8)=3(5)+3

Click here to see answer by solver91311(24713) About Me 

Question 604426: how would you evaluate 3*[(18*5)~3]
Click here to see answer by lynnlo(4176) About Me 

Question 604422: how do you evaluate 18.9-[933.3~11.1)*6)
Click here to see answer by Alan3354(69443) About Me 

Question 604501: in how many ways can a committee of three men and four women be formed from a group of 12 men and 12 women?

Click here to see answer by Edwin McCravy(20060) About Me 

Question 604806: how do i solve (x-1)/2=(x+1)/4
Click here to see answer by alicealc(293) About Me 

Question 604865: Hello,
would you pls check if my answer is correct?
Subtract and simplify: (2x^2 + 5x – 4) – (3x^2 – 7x + 1)
My answer : –x^2 + 12x – 5
Thanks a lot,
H.H

Click here to see answer by bucky(2189) About Me 

Question 606079: choose the correct graph of the function
y= -2x+3

Click here to see answer by Alan3354(69443) About Me 

Question 606595: rewrite without parentheses. (12c^8)-(18c^4)
Click here to see answer by lynnlo(4176) About Me 

Question 607107: solve for t in 6t + 2 + 3t + 17 = 10
Click here to see answer by lawdej(58) About Me 

Question 607348: 10x +3=15
Click here to see answer by jim_thompson5910(35256) About Me 

Question 606819: y= -3
y^2+8y-7

Click here to see answer by jim_thompson5910(35256) About Me 

Question 606813: y= -3
y^2+8y-7

Click here to see answer by jim_thompson5910(35256) About Me 

Question 605546: factor.write prime if the expression cannot be factored : S exponent2 -S-6

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Question 607611: Which is equivalent to the following expression?
(3x + 1)(4x - 1)

Click here to see answer by rfer(16322) About Me 

Question 607699: Please help me evaluate the expression:
2x + 6(x + 2), where x = 3/4

Click here to see answer by jim_thompson5910(35256) About Me 

Question 608166: -7+4b+3-b=
Click here to see answer by jim_thompson5910(35256) About Me 

Question 608339: Suppose you select a 3-digit number at random from the set of all positive 3-digit numbers. What are the odds against a number greater than 400?
Click here to see answer by Edwin McCravy(20060) About Me 

Question 608451: Please explain how to write a rational expression as an equivalent rational expression with a given denominator
Click here to see answer by lynnlo(4176) About Me 

Question 609182: Where would the parentheses go in 6+6/6+6*6=6 to make the statement true?
Click here to see answer by solver91311(24713) About Me 
Question 609182: Where would the parentheses go in 6+6/6+6*6=6 to make the statement true?
Click here to see answer by ewatrrr(24785) About Me 

Question 609492: hello,
We are having problems with this question:
Compare x and y (>,<,=, or insufficient information) if x and y are both negative and x divided by y =2.

Click here to see answer by scott8148(6628) About Me 

Question 610067: 9b+a+11-3a-12=
Click here to see answer by jim_thompson5910(35256) About Me 

Question 610423: simlify -5(x-2) I thnk it is -5X + 10
Click here to see answer by Alan3354(69443) About Me 

Question 610879: Will you please simplify 30/20 and show all work.
Click here to see answer by jim_thompson5910(35256) About Me 

Question 611069: I need to factorise the following expression:-
x^3+16x^2

Click here to see answer by jim_thompson5910(35256) About Me 

Question 611067: I need to factories the following expression:-
x^2+2x

Click here to see answer by nerdybill(7384) About Me 

Question 611068: I need factorise the following expression:-
x-4x^2

Click here to see answer by lynnlo(4176) About Me 

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