Questions on Algebra: Operations with Signed Numbers answered by real tutors!

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Algebra: Operations with Signed Numbers

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Question 23286: -1/2+3z=1/2z+2/3 please help me..i have trouble solving fractions..thank you..
Click here to see answer by smik(40)

Question 23702: The lowest temperature on a winter morning was -8F. Later that same day the temperature reached a high of 24F. By how many degrees Fahrenheit did the temperature increase?
A. 3
B.8
C.16
D.24
E.32
Click here to see answer by rapaljer(3620)

Question 23924: My kid came at me with this and it does not make sense to me??
1+2+3+4+5+...+M=820
and the problem says solve for M
If it were not for the three dots
Click here to see answer by longjonsilver(2297)

Question 23992: 3(4x+6)+7
Click here to see answer by Tweety6511(3)

Question 20465: (4xA)+(6xB)=32
A+B=7
Click here to see answer by stanbon(26259)

Question 24947: 2+3(14-2x2)

Click here to see answer by xxfuncrazychicxx(2)

Question 24947: 2+3(14-2x2)

Click here to see answer by pwac(251)

Question 24953: How do you solve:
-44 + (-3/8) + 95 + (-5/8)
Click here to see answer by wuwei96815(245)

Question 24992: -(c-3d)=
Click here to see answer by music974(43)

Question 24990: 4(3-5+7)+5
Click here to see answer by music974(43)

Question 25048: if a number is written in standard form, describe the process used to write this number in expanded form?
Click here to see answer by stanbon(26259)

Question 25675: how to round numbers to nearest millionth
Click here to see answer by mike69(9)

Question 26817: 16-(-3)^4
Click here to see answer by uknouluvme89(30)

Question 27312: write 2 equivalent fraction to 7/14
Click here to see answer by sdmmadam@yahoo.com(530)

Question 27473: what is the rule for adding and subtracting multipying and diving intergers .
for example:-2+2
-3*27
-12/4
Click here to see answer by longjonsilver(2297)

Question 27473: what is the rule for adding and subtracting multipying and diving intergers .
for example:-2+2
-3*27
-12/4
Click here to see answer by sdmmadam@yahoo.com(530)

Question 27488: 3(5-a)-4(-1-a) how do i do this problem?
Click here to see answer by stanbon(26259)

Question 27489: how do i do this problem? 3x(2x-1)+7(x2-3)
Click here to see answer by prabhjyot(164)

Question 27487: how do i do this problem?
5x(3x-y+1)
Click here to see answer by prabhjyot(164)

Question 27592: Please solve this problem.
9+(7-12)=???????

Click here to see answer by whty89(20)

Question 27840: I have a problem here with my daughters math problem it is 44=2m we don't know how to solve it.
Click here to see answer by MOD(6)

Question 28749: Evaluate the algebraic expression for the given value of the variable.
6(x - 8); x = 4
Click here to see answer by emmychan(11)

Question 28746: Use the order of operations to simplify the experssion
¬12(-1)-(-8)(-7)
2[-12 / (-3 -3)]
There is a line in between the sets of numbers
Click here to see answer by emmychan(11)

Question 28748: Simplify the algebraic expression
2 - 7[5 - (6x - 4)]
Click here to see answer by emmychan(11)

Question 29182: Please simplify -30 divided by (-3)+45 divided by (-9).
Click here to see answer by Nate(3495)

Question 29181: Please simplify 3(2a+4b)-a-6.
Click here to see answer by Nate(3495)

Question 29181: Please simplify 3(2a+4b)-a-6.
Click here to see answer by atif.muhammad(135)

Question 30488: log2*=x
logex=4
Click here to see answer by sdmmadam@yahoo.com(530)

Question 30570: my question has to do with order of operations.
I know the answer but i do not know how i came to the answer.

(100 +50)+(15-5) please explain to me how to come up with the answer it seems simple but i can't seem to do it right?

Click here to see answer by Cintchr(475)

Question 31482: I submitted a question and i did not complete what i needed....
i will rewrite the question
2(15-5)*(8+2)
what is the order of operation? I said it is -,+,*,*
the answer key says -,*,+,* is the answer.
although both orders give the same answer (200) is my answer incorrect?
Click here to see answer by stanbon(26259)

Question 31481: 2(15-5)*(8+2)=
Click here to see answer by Cintchr(475)

Question 32185: 2(x+4)+3x=2(x+3)+8
Click here to see answer by LifeDeathnCandy(5)

Question 32184: 2(2x+3)+9=x+2x+18
Click here to see answer by checkley71(8405)

Question 32505: 6x+2y-4x
Click here to see answer by benni1013(141)

Question 32468: Hello! I'm having trouble with rounding large numbers. Please Help
It says to round 324,523 to the nearest hundred. Please help
Click here to see answer by mukhopadhyay(490)

Question 31907: 4x-2=5x+7
4y+3=-2y-5
-7a+4=5a-2
-5x-7=-3x+2
Click here to see answer by checkley71(8405)

Question 31414: No past Algebra classes. Need class for my AA this spring. Trying to grasp all these new rules and characters. What do i do with #47, nothing registering. thanks!
Click here to see answer by Prithwis(166)

Question 34709: What is the sum of 55 and -8?
Click here to see answer by rahman(247)

Question 34709: What is the sum of 55 and -8?
Click here to see answer by Prithwis(166)

Question 34719: The quotient of two fractions is equal to the product of the first and the reciprical of the second. Why?
Click here to see answer by venugopalramana(3286)

Question 34835: Hi there, I am trying to help my daughter out with her grage 8 math. I have taken algebra before but I am stuck on this problem, and I came to your site and thought you would help me solve this for her. Your site is very useful and helpful. This question is part of her review assignment and here it is:
3(7a+5)+2(6a^2/a^2)=237
I kept coming up with decimals.
Thank you very much. I appreciate it.
Click here to see answer by stanbon(26259)

Question 34957: 400 people were surveyed before a vote for a referendum. 300 of the 400 said yes.expess this as an equivalent ratio in simplest form.
Click here to see answer by checkley71(8405)

Question 25470: (5)(-3)(9)(0)(-6)(7)
Click here to see answer by scoop(27)

Question 13684: possitive and negative is equal what?
Click here to see answer by scoop(27)

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