Questions on Algebra: Equations answered by real tutors!

Tutors Answer Your Questions about Equations (FREE)

Question 440222: wats 2x+3y
Click here to see answer by richard1234(7193)

Question 440468: How do you solve the following equation:
2x squared minus 5x equals 12
Click here to see answer by edjones(8007)

Question 440430: what two numbers multiplied together equal 42,000 and add to be 20
Click here to see answer by Alan3354(69443)

Question 440501: I am having trouble with this equation Solve by clearing fractions; 2/7 + x = x/3 -3
Click here to see answer by edjones(8007)

Question 440781: 3x - 4y = 24
y = -3/2x + 3
what's the steps of this equation
is this infinietly many solutions or no soultion
Click here to see answer by ewatrrr(24785)

Question 440774: -24x + 4y = 4
-6x + y = -1
what are the steps to working this out?
is the system inconsistent, dependent or neither?
Click here to see answer by jorel1380(3719)

Question 440775: 7x + 2y = 0
4y = -14x
what are the steps to solve
is this infinitely many solutions or no solution?
Click here to see answer by jorel1380(3719)

Question 440849: could someone please help me solve this equation and solve by the substitution method?
The solution to the system of equations below is (8,4)
3x - 5y = 4
7x + 3y = 68
thank you
Click here to see answer by Alan3354(69443)

Question 440864: how do I solve this equation and what are the steps. I can't seem to figure it out. Thank You
45/d=5
Click here to see answer by Alan3354(69443)

Question 440864: how do I solve this equation and what are the steps. I can't seem to figure it out. Thank You
45/d=5
Click here to see answer by stanbon(75887)

Question 440899: How many brownies can I make to feed 25 students? Or how many boxes of brownie mix should I purchase/
Click here to see answer by rwm(914)

Question 441007: What is..
24= -6 (m+1)+ 18
Click here to see answer by MathLover1(20849)

Question 440965: Working on Algebra homework, I can figure out how to start this problem, but by the time I get to the end, my answer never makes sense.
2/y+3 - 1/y-3 = 1
I found the LCD, (y+3)(y-3), and multiplied that by each term. Then I cancelled out whatever I could and set up an equation:
2(y-3) - (y+3) = (y+3)(y-3)
Then I simplified that, but I ended up with y=y2
Thanks.
Click here to see answer by scott8148(6628)

Question 441061: i dont get it when a negitive number then a fration are tryed to be multipled (explm. -8=x over 5
Click here to see answer by MathLover1(20849)

Question 441125: My daughter is just learning fractions in 4th grade and I am trying to help her. Unfortunately it has been some time since I have done this. I can't seem to remember how to find the value of x in a fraction...like this x/8 = 1/4.
can you help me?
Click here to see answer by stanbon(75887)

Question 441186: I need help by solving this quatric equastion
4x^4-37x^2+9=0
Thank you!
Click here to see answer by shree840(260)

Question 441204: Solve the equation 2x3 + x2 - 13x + 6=0.
One of the roots lies between 1 and 3.
Click here to see answer by lwsshak3(11628)

Question 441095: Hello, i have to solve these equations by rearranging.
1.3x=7
2.12(x+5)=3(7+4x)
3.5(x-3)=2x-3(x+1)
Thank you for all your help :)
much appreciated
Click here to see answer by ankor@dixie-net.com(22740)

Question 441318: The area of a rectangle is 70 square meters. The length is 4 meters less than twice the width. What is the length?
Click here to see answer by jorel1380(3719)

Question 441390: index of 3, -128x^9y^14/27
Click here to see answer by stanbon(75887)

Question 441392: solve each literal equation for the given variable. You must show your work.
1.Solve S = 4v^2 for v.
i am not understanding what to do
Click here to see answer by rwm(914)

Question 441650: How can I solve following equations?
1) ((20+h)h)^1.666 / (4.828h+20)^0.666 = 2.846
2) y^3-0.785y^2+0.026=0
Thanks for your help
Click here to see answer by stanbon(75887)

Question 441814: Hello, My name is Kescha and I was trying to work out a problem and it's solve the equation 20-3x= 15+2x
Click here to see answer by Alan3354(69443)

Question 441814: Hello, My name is Kescha and I was trying to work out a problem and it's solve the equation 20-3x= 15+2x
Click here to see answer by stanbon(75887)

Question 441835: 3 div. by 2(2+1) = ?
Click here to see answer by AHBK(13)

Question 441900: Solve
12x^3+84x^2+120x=0
Click here to see answer by rwm(914)

Question 441901: Find an equation of a parabola that contains the points (1,4) (2,7) (4,25).
Click here to see answer by rwm(914)

Question 442010: i need to know how to figure out wht is 1/5 of 50
Click here to see answer by wilft1(217)

Question 442163: I dont know what section I need, but can someone help me with the following problem? I have no clue where to even begin. Thank you.
Find f(x+h)-f(x)/h for the following function:
3x-2
Click here to see answer by stanbon(75887)

Question 442159: Find the derivative.
y = 12x-2 + 4x3 - 1x
Click here to see answer by lwsshak3(11628)

Question 442296: the difference between nine times a number and six is twelve. find the number.
Click here to see answer by stanbon(75887)

Question 370013: Hi,
Another tutor tried helping me with the problem below but I still don't understand how to work it out.. Can someone please provide step by step instructions?
4/3x+2=6

Thank you!
Click here to see answer by swincher4391(1107)

Question 442333: 18x^3-98x
Click here to see answer by swincher4391(1107)

Question 442333: 18x^3-98x
Click here to see answer by shree840(260)

Question 442334: Passing through the point (3,7)and parallel to the line with equation 5x+3y =12
Click here to see answer by swincher4391(1107)

Question 442358: Lydia makes a calculation and gets an answer of 22.5. On the last step, she multiplies by 0.3 when she should have divided by 0.3. What should the correct answer be?
Click here to see answer by htmentor(1343)

Question 442356: Explain why it is not necessary to state a subtraction principle: For any real numbers a, b, and c, a = b is equivalent to a � c = b � c.
Click here to see answer by stanbon(75887)

Question 442409: 6(d+6)=4(d-6)+2d
Click here to see answer by swincher4391(1107)

Question 442369: clear fractions, solve and check for problem 2/3+1/4t=2
Thank you
Click here to see answer by ewatrrr(24785)

Question 442379: Solve 4a+5+2a=7+a
Click here to see answer by jorel1380(3719)

Question 442395: If I have a $2,000 budget and I need to purchase 6 chairs, what is the highest price I can pay for a chair?
Click here to see answer by jorel1380(3719)

Question 442495: I am very confused at what this question is asking 6/x + 1 - 7/x the directions say reform operation. What am I supposed to solve for? and what exactly is the problem?
Thanks
Click here to see answer by stanbon(75887)

Question 442451: -3 + 7x = 18
Click here to see answer by rfer(16322)

Question 442505: Solve the following equations by
Gauss - Elimination Method :
54x+y+z=110
2x + 15y + 6z = 72
� x + 6y + 27z = 85.
Click here to see answer by swincher4391(1107)

Question 442527: clay shrinks when you fire it, and the % of shrinkage for her clay was 14%. she needed a 10 cm long piece. she added 14% to 10 cm to get the size the piece should be made before firing it. 14% of 10 is 1.4 so she made an 11.4 cm piece. after 2 tries the piece still did not fit.
Did you see what was wrong with her method? What is the correct size the piece should be before firing?
Click here to see answer by stanbon(75887)

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