Questions on Algebra: Equations answered by real tutors!

Tutors Answer Your Questions about Equations (FREE)

Question 28762: what is 2y-x=6
Click here to see answer by Lal(16)

Question 28838: 3a+2[2+3(9-1)]=2(3a+4)
Click here to see answer by Lal(16)

Question 28845: I have to solve math krytos.
Do you know what they are?
Here is two of them. Can you solve them? If you can can you give me a website that can solve them for me. Thanks Alot
36 41 30 34 35 = 19
42 12 32 37 50 = 23
Please Help Me
Click here to see answer by longjonsilver(2297)

Question 28775: Hello! I'm making my way through a book called "The Mathematics of Games and Gambling" by Edward Packel. There's an algebraic equation therein which goes like this:
x=4pq-5(1-q)-2(1-p)q+3(1-p)(1-q). The author partially reduces this expression to the following:
x=14pq-8p-5q+3. I don't understand how he arrived at that point. Using my own highly dodgy math skills, I came up with the following:
x=9pq-5p+2q-2. I tried the "collecting like terms" operation, but I obviously veered off the right path somewhere. Could someone show me the light here, please? With many thanks, RR
Click here to see answer by venugopalramana(3286)

Question 28939: In the text book, the directions are, "Write an equation for each line that contains the given pair of points.(for slope)" The problem is (-6,1) (2,3). I don't understand how to get the answer, using the formula y=mx+b. Thank you.
-Krissy
Click here to see answer by stanbon(75887)

Question 28949: Is y a direct variable of x in the following equation?
2y=5x+1
Click here to see answer by stanbon(75887)

Question 29058: i really dont understand my math.
its
3k+16=5k
im new to this school.and i don't get it.because i never had done algebra in my life
Click here to see answer by QueenVoda(11)

Question 29061: what would you do if students were being bad and you couldnt controll them at all. because all my teaher does is yells at them but it doesn't even work. or she will go ask a student to go get the dean. so my question is could you give me some advice thanks.
Click here to see answer by josmiceli(19441)

Question 29062: you give a salesperson $20 for a purchase and receive change. Use your function to find the amount of change from a $4.50 purchase. what is the function rule
Click here to see answer by josmiceli(19441)

Question 29114: 4x^3y-20x^y+16xy
Click here to see answer by sdmmadam@yahoo.com(530)

Question 29148: Jose invested $5,000.00. He invested part of it in a bond fund paying 5%, and the rest in a money market fund paying 4%. If the total interest earned for one year was $220.00, how much money did Jose invest in the money market fund?
Thank you,
lyra
Click here to see answer by ikdeep(226)

Question 29144: Solve for x: (x - 4)/2 - 1/5 = (7x + 1)/20
Combine like terms: 3x - 6x^2 + 2 - 4x^2 + 7x - 1 - 8 - 3x^2
Name the property of rreal numbers illustrated below:
4 + (7 + 1) = (4 + 7) + 1
Click here to see answer by sdmmadam@yahoo.com(530)

Question 29153: We are starting Polynominals .
1. (x-6)(9x+4)(9x-4) 2. (x-1)(x+2)-(x+3)(x-4)
Click here to see answer by sdmmadam@yahoo.com(530)

Question 29143: (x - 4)/2 - 1/5 = (7x + 1)/20
Click here to see answer by sdmmadam@yahoo.com(530)

Question 29143: (x - 4)/2 - 1/5 = (7x + 1)/20
Click here to see answer by atif.muhammad(135)

Question 29146: An artist can make two kinds of ornaments, free standing or hanging. He can make at most 50 ornaments each week, and the greatest number of hours he can work in a week is 70. It takes 2 hours to make a free standing ornament and 1 hour to make a hanging ornament.
His profit is $9 for each free standing ornament and $12 for each hanging ornament. How many of each type ornament should he make to maximize his profit?
Thank you,
lyra
Click here to see answer by checkley72(6)

Question 29179: Good evening,my dear,could you teach me about mathematics Concept of alebra,geometry,trigonometry, etc...I willl wait for you. I would like you send its to me.

Thank a lot Yours faithfully student (Emmamodi)
Click here to see answer by atif.muhammad(135)

Question 29218: Given f(x) = 5x2 � 3x + 1, find f(�2).
Click here to see answer by Nate(3500)

Question 29224: Hi,I have a problem not sure how to approach it.
4s-7+=-2(1-s)

Click here to see answer by Nate(3500)

Question 29074: when i'm finished simplifying the equations do i multiply or divide?

Click here to see answer by Nate(3500)

Question 29271: Fine the coordinates of the midpoint of a line segment that has the endpoints (2,5) and (4,-1)
Click here to see answer by atif.muhammad(135)

Question 29261: 9(x-3)-6=2(x+1)
Click here to see answer by elima(1433)

Question 29321: Determine the value of r so the line that passes through (4,-7) and (-2,r) has a slope of 8/3
Click here to see answer by Nate(3500)

Question 29315: I need help finding the equivalent rate of 8.5 km over 1 hour and ? m over 1 hour.
Click here to see answer by Nate(3500)

Question 29334: x/0.4=2x + 1.2
Click here to see answer by sdmmadam@yahoo.com(530)

Question 29325: Triangles ABC and DEF are similar. Find the measures of the remaining sides a=8, c=10, b=6, f=9
Click here to see answer by venugopalramana(3286)

Question 29270: Triangles ABC and DEF are similar. Fine the Measures of the remaining sides. a=8,c=10,b=6,f=9
Click here to see answer by venugopalramana(3286)

Question 29356: Please help me solve my son's word problem. The sum of two number is 63. Three times the larger number is 14 more than two times the smaller number. What are the numbers? Thank you.
Click here to see answer by longjonsilver(2297)

Question 29107: i dont understand how to solve 2-step equations (integers)and soleving 2-step equations(decimals and fractions)
Click here to see answer by elima(1433)

Question 29416: -3b=96+b
Click here to see answer by stanbon(75887)

Question 29416: -3b=96+b
Click here to see answer by askmemath(368)

Question 29458: Please help me solve this equation.
3x/x+2+7/x-2=3
Click here to see answer by ikdeep(226)

Question 29484: 5+8x=11
-5+4x=-1

Click here to see answer by sdmmadam@yahoo.com(530)

Question 29495: BY DRAWING THE GRAPH OF y=3x - 3 find where it crosses theY-axis and the gradient
Click here to see answer by AnlytcPhil(1806)

Question 29582: 3x+1=6. how do i find out what x is?

Click here to see answer by sdmmadam@yahoo.com(530)

Question 29542: 5(5x+4)-(x-3)=5 solve for x
Click here to see answer by sdmmadam@yahoo.com(530)

Question 29557: y=5x-10

Click here to see answer by ikdeep(226)

Question 29570: solve m=n*square root((c+v)/(c-v)) for v
Click here to see answer by longjonsilver(2297)

Question 29507: Please help me solve: 4x-2=1-(2x+3)
Click here to see answer by sdmmadam@yahoo.com(530)

Question 29551: I'm not sure where to put this or to call it. We are comparing polygons and measurements....I have a word problem that I have been trying for hours to figure out...Could you help me... 7. You are standing 16 feet from the base of a flag pole. Both your shadow and the pole's shadow extend to the same point 4 feet from you. You are 5 feet tall. Find the height of the flag pole.....I'm in the 7th grade and i'm really stumped with this problem...Thank you...Nick
Click here to see answer by Earlsdon(6294)

Question 29553: y=5x-10
Click here to see answer by elima(1433)

Question 29651: y^2+49+14y
Click here to see answer by askmemath(368)

Question 29660: Hey! Can someone PLEASE help me?!? I honestly have no clue what i'm doing and i'm so worried that i'm gonna fail♥...Here is the problem: Solve each equation if x and y are whole numbers. 2xy+5=15 and xy=4-x.
Help would be greatly appreciated!♥
♥Jenna♥
Click here to see answer by ikdeep(226)

Question 29690: 4(2x-1)-1=6. how do you find out what x is? please help me!
Click here to see answer by ikdeep(226)

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