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

Tutors Answer Your Questions about Signed-numbers (FREE)

Question 112801: how do you do albrega in expressions and simplying
Click here to see answer by LuckyLep(3)

Question 115255: How many yards of material from a 24-yard length of cloth remain after 3 pieces, each 3 1/2 yards long, and 5 pieces, each 2 1/4 yards long are removed. Can you please show me how to solves these type of questions?
Click here to see answer by stanbon(75887)

Question 115549: 2/3t=-1/5
Click here to see answer by jim_thompson5910(35256)

Question 115547: 2(-5)-3(-4)
I tied doing this one in a line, but I came up with 28, which is not one of the options for the answer.
Click here to see answer by scott8148(6628)

Question 115646: Combine like terms. 5w � 6w
Click here to see answer by jim_thompson5910(35256)

Question 115646: Combine like terms. 5w � 6w
Click here to see answer by edjones(8007)

Question 115805: Evaluate a(b+c) if a = 9, b = 3, and c = 7.
Click here to see answer by Nihat Routsong(11)

Question 115802: 15 + -35 - -35 =
Click here to see answer by Nihat Routsong(11)

Question 115806: Write in order from least to greatest.
1, 3, -3
Click here to see answer by checkley71(8403)

Question 115804: 63 - 12 + 4 x 3 =
Click here to see answer by checkley71(8403)

Question 115803: 4 (-3) + 4
___________
8-4
Click here to see answer by checkley71(8403)

Question 115801: Perform th3 operations
63 - 12 + 4 x 3 =
Click here to see answer by checkley71(8403)

Question 116592: simplify
(4x3power y4power)(3x2nd power y)
Click here to see answer by MathLover1(20849)

Question 116588: Simplify
12 + 4 x 10
Click here to see answer by jim_thompson5910(35256)

Question 117431:
solve
7/y = 5/8
Click here to see answer by bucky(2189)

Question 117433: Multiply
(m-4n)(m-4n)
Click here to see answer by jim_thompson5910(35256)

Question 117433: Multiply
(m-4n)(m-4n)
Click here to see answer by bucky(2189)

Question 117435: -20b 2nd power/3a times 15a 3rd power/5b
Click here to see answer by MathLover1(20849)

Question 117434: Simplify
5x 4power - 2n 2nd power - (-x fourth power - x 2nd power)
Click here to see answer by jim_thompson5910(35256)

Question 117632: Hii. Well i was assighned a Essay to do that has to be about 1-2 pages of why do we get a positive number when deviding a negative number by a negative number? and a feww examples and add diagrams and stuff. And i didnt really find any answers online. do u think you could help me?
Click here to see answer by stanbon(75887)

Question 115382: The sum of two intergers is -8 and their product is -20.wat are the integers?
Click here to see answer by solver91311(24713)

Question 119405: A rectangle has a perimeter of 78 inches. Its length is 6 inches more than twice its width.
a. make a sketch of the rectangle and label its sides
b. find the recangle's length and width.

I tried doing this but it gets me confused.
I did:
78=2w+6
72=2w
Then I'm just lost. If i continue, the perimeter doesnt add up. Please help!

Click here to see answer by ankor@dixie-net.com(22740)

Question 119813: 1/2 + (2/3 / 3/4) - (4/5 x 5/6) = ?
Can you help us solve this? Thanks!
Click here to see answer by jim_thompson5910(35256)

Question 119912: -9 + 18/-3(-6)
______________
32- 4(12)/3(2)
I do not know what I am doing wrong on the bottom part. I have the answer to the top.
I am new to algebra.
I need to see the steps so I may understand the process and learn what I did incorrectly.
Thank You
Click here to see answer by Earlsdon(6294)

Question 106893: 1. 72 is what percent of 90?
2. find 10% of 240?
3. 90 is what percent of 360?
4. find 8% of 120?

Click here to see answer by HyperBrain(694)

Question 120827: When two negative numbers are multiplied the answer is postive. For example,
(-a x -b)=ab. What is the best conceptual explanation for this? The rule says a negative multiplied by a negative is a postive. What is the best way to explain why this rule is true?
I am stumped on the explanation. Thanks.
Kenneth
Click here to see answer by solver91311(24713)

Question 121357: -3-(7)/3-5 is the question. i am haveing trouble with the positive and negative. when you add and subtract and when it becomes multiplacation
Click here to see answer by checkley71(8403)

Question 122200: 7^2-4(8-6)
Click here to see answer by rajagopalan(174)

Question 115942: I am stuck on evaluate an algebraic expression on a self check problem; If r= 2, s=-5,and t=3, evaluate: from the book Intermediate Algebra by alan S. Tussy and R.David Gutafson, Thomson/Brooks/cole. Chapter 1 page 30 a review on basic algebra. I try following the example 12, but the approach is different. Could you help me. Thanks Harold(Harry)Nunez
Click here to see answer by solver91311(24713)

Question 123326: Please help me solve this problem 9-5(-7x+5)
Click here to see answer by MathLover1(20849)

Question 123350: Plase help me solve this problem n-40-25= -35
Click here to see answer by stanbon(75887)

Question 124044: what is v=c(1-t)over n what is n
Click here to see answer by stanbon(75887)

Question 124728: Decide whether each is an expression or an equation. If it is an expression, simplify it. If it is an equation, solve it.
(a) 5x + 8 - 4x + 7 (b) -6y + 12 + 7y -5 =

(c) 5x +8 - 4x = 7 (d) -6y + 12 + 7y = -5
Click here to see answer by dolly(163)

Question 125291: -23-c=-19
Click here to see answer by checkley71(8403)

Question 127428: what does x and y =
the equation is x-4y=8
the other one is x=-1+y
Click here to see answer by BrittanyM(80)

Question 110166: in adding sign numbers do u still add if the sign are negatives

Click here to see answer by JessicaGill(40)

Question 109894: I have a problem I would like to get your opinion on for my answer.
Here it is: Evaluate each of the expressions if a=-2, b=5, c=-4, d=6 So here is the problem: b(with a sq rt of 2) - 2bc + c (with a sq. rt of 2)
My answer is this 5(5)- 2(5)(-4)+(-4 sq. rt of 2) am I on the right track here for my answer.
I am sorry I could not place the sq.rt of 2 with the first letter "b" and the last letter "c" I could not figure out on this web page how to do that. I appreciate your help on this for me.
Thank you, Barb Neely
Click here to see answer by JessicaGill(40)

Question 119413: I please need help on ways to remember how to multiply, subtract, add, divide negative and positive numbers. Please, ive tried all the ways ive been taught.
Thank you a lot
Click here to see answer by apachemexican1(64)

Question 130514: 25+157+(-75)
Click here to see answer by edjones(8007)

Question 132791: Given f(x)=2x^2-3x+5, Find f(1).
Click here to see answer by checkley71(8403)

Question 106180: I tried to solve this problem in many ways, please help
problem (2.2^2)^3 =
my answer 2.2=4
(4^2)=16
16^3=4096
then
(2.2^2)^3
(4.2)
(8)^3
512

Click here to see answer by checkley71(8403)

Question 134618: how to find the degree of a polynomial
Click here to see answer by vleith(2983)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935