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 69927: I need to know the rules for signed number arithmetic ie: when adding like signs..., unlike..., subtraction, multiplication, division... Thank you!
Click here to see answer by bucky(1732)

Question 69980: I have to right an essay about algrabra saying what i understand and dont. I have an A in math, but im not good with explaining what I know.
Click here to see answer by ptaylor(1578)

Question 70529: Please help me solve: 1 / 3 ^3 minus [ ( 2 / 3 + 1 / 2 ) divided by 2 / 3 ]
1 / 3 cubed = 1 / 27
2 / 3 + 1 / 2 = 4/6 + 3/6 = 7/6
7/6 divded by 2/3 = 7/6 * 3/2 = 21/12 = 7/4
1/27 - 7/4 = 4/108 - 189/108 = - 185/108 ?????? = 1 and 77/108 ?????
Click here to see answer by funmath(2873)

Question 70707: I need help solving -3/5[2/3-1/2(3/4-1/2)]
Click here to see answer by stanbon(26259)

Question 70707: I need help solving -3/5[2/3-1/2(3/4-1/2)]
Click here to see answer by arisimo(1)

Question 71608: simplify: -2y^2+y+9y^2-10y
Click here to see answer by checkley75(3666)

Question 72422: Can someone please help me simplify this problem I am failing my class .Thanks A MILLION?
12- √ [100] + 9²

Click here to see answer by bucky(1732)

Question 74409: Dear sir.
My homework is quite hard for me so if you can help me i will be very grateful....
I have got to find the pairs e.g 4 times b = 4b but what is 2(x-1) and 4 times ( x-1)
Click here to see answer by bucky(1732)

Question 74735: 9*9=X
X=?
Click here to see answer by mathman409(67)

Question 76247: What is the meaning of one star in algebra.
Click here to see answer by psbhowmick(456)

Question 76600This question is from textbook ALGEBRA

: i want to now how to add negative with possiteveThis question is from textbook ALGEBRA

Click here to see answer by jim_thompson5910(13787)

Question 76600This question is from textbook ALGEBRA

: i want to now how to add negative with possiteveThis question is from textbook ALGEBRA

Click here to see answer by checkley75(3666)

Question 79302: a2 - a5
Click here to see answer by mathdoc314(58)

Question 79302: a2 - a5
Click here to see answer by keyshla(1)

Question 80583: 9:
(x3 + 4x2 - 2x + 5) - (3x3 - 3x2 + x - 2)
Click here to see answer by tutorcecilia(2042)

Question 47174: I am not sure how to solve this equation.
(3/4-2/3)+ (1/2+1/3)=

I also need help solving this equation.
1/2+(2/3 divide by 3/4)-(4/5x5/6)=
Click here to see answer by vertciel(183)

Question 82423: -6 divided by 2
Click here to see answer by checkley75(3666)

Question 82434: -6 divided by 2= -3
Click here to see answer by mookj(2)

Question 82732: 3/4(-2/5)-(-3/5)
Click here to see answer by checkley75(3666)

Question 83405: Eight less than six times a number is 104. Find the number.
Click here to see answer by josmiceli(3003)

Question 83995: m devided by 3 = 15
Click here to see answer by jim_thompson5910(13787)

Question 84830: Simplify:

Click here to see answer by Spec80(9)

Question 84825: Simplify:
-2(-5)/(-1)+7

Click here to see answer by Spec80(9)

Question 84860: Simplify:
-(2-5)/(-1)+7
Click here to see answer by jim_thompson5910(13787)

Question 84930: Add.
15 + (-20) + 13 + (-13)
Click here to see answer by checkley75(3666)

Question 84926: Solve. 3(x - 2) - 2x = x - 6
Click here to see answer by checkley75(3666)

Question 84923: Solve and graph the solution set. x + 16 > 4
Click here to see answer by mala_kumarkos@yahoo.com(10)

Question 84922: Solve. 6x + 4(3x - 2) = 6x + 2
Click here to see answer by mala_kumarkos@yahoo.com(10)

Question 85064: 5x+12-3x=-2x-13-x how do i solve this?
Click here to see answer by mala_kumarkos@yahoo.com(10)

Question 85194: 2x-{4x-2[3x-4(2-2x)+6+4]-5x+3}
Click here to see answer by bucky(1732)

Question 86150: Tutor could you help me please: Thank you...What is
3/2b-5/3b^3
Click here to see answer by stanbon(26259)

Question 86364: 3[12x-2(5x-1)]
3[12x-10x+2]
3[2x+2] = 6x+6
Click here to see answer by chitra(359)

Question 86364: 3[12x-2(5x-1)]
3[12x-10x+2]
3[2x+2] = 6x+6
Click here to see answer by praseenakos@yahoo.com(417)

Question 87459: How do I solve 4-2(x-4)>5x-(2x+3)?
Click here to see answer by Earlsdon(4898)

Question 88090: simplify:(-7)(-3)+(-2)^2+(-16)(2)
14x(-3y)-(-3)(-5y)
4[3x+(-2x)]-5(3x+2x)
(70a-40b)/(-10)
-3(x-5)-(x+7)

Click here to see answer by malakumar_kos@yahoo.com(315)

Question 88090: simplify:(-7)(-3)+(-2)^2+(-16)(2)
14x(-3y)-(-3)(-5y)
4[3x+(-2x)]-5(3x+2x)
(70a-40b)/(-10)
-3(x-5)-(x+7)

Click here to see answer by kids4babysitting(1)

Question 88469: A submarine descended to a depth of 479 feet and then rose 320 feet.how far below the surface was the submarine and how would you represent this with a signed number?
please i need helph in this problem so help me plz...
Click here to see answer by 303795(562)

Question 88470: How to solve this problem?
Problem: Use the digits 1-9 in order. Insert operation signs and add grouping symbols to got the value of 100.

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Question 88468: Problem: Use the digits 1-9 in order. Insert operations signs and grouping symbols to get the value of 100.
Click here to see answer by 303795(562)

Question 88467: Problem: Use the digits 1-9 in order. Insert operation signs + grouping symbols to get the value of 100
Click here to see answer by 303795(562)

Question 91376: Hello My name is David O'Brien and I am stumped on this one math problem.
6*2
_____ =3
1-x
Thank you for all of your help?
Click here to see answer by Earlsdon(4898)

Question 92354: Solve the equation:
x/4 -1= x/5
I dont understand at all how to do it.

Click here to see answer by dolly(163)

Question 92609: 12*4/6*2

Click here to see answer by checkley75(3666)

Question 92826: what is the answer to 53+(-19)+(-102)
Click here to see answer by checkley75(3666)

Question 93182: 1)Given the binary operation * defined over the set of real numbers R by a*b=a+b+ab. What are the invertible elements of R with respect to *.

Click here to see answer by venugopalramana(3286)

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