Questions on Algebra: Linear Equations, Graphs, Slope answered by real tutors!

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Question 6749: Finding three ordered pairs that satisfy equation. X + Y = 7
I have tried using Algebrator on this but I cannot figure out where 3 ordered pairs come from. (0,7) (7,0) yes but what is the last? (X + y = 7)

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Question 6793: Solve for the variable

5-8x=29

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Question 6804: 9= -6-3b
nine equals negative 6 minus three b

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Question 6867: Please help me solve this equation:
23.20x + 9.86y = 3206.82

Click here to see answer by longjonsilver(2297) About Me 

Question 6879: It has been over 24 years since I have used algebra. I have 2 days until I take a test for an electrition apperentiship. I have to take a simple algebra test. One of the questions is
A=B+3(4-C)
B=5 and C=2
What is the value of A
I know the anwser is 11 (according to the back of the book anwsers)
My question is, how do they get that anwser? I remember that you do the work in the () first which would be (4-2)which would equal 2
so A=B+3(2)
A=5+3(2)
A=8(2)
A=10
Which is not what they say it is.
Could you please tell me where I went wrong in my solving this question and some basic "this is what you do first" type of help.
Thank you,
Ron

Click here to see answer by glabow(165) About Me 

Question 6902: A student has earned scores of 87, 81, and 88 on the first 3 of 4 tests. If the student wants an average (arithmetic mean) of exactly 87, what score must she earn on the fourth test?
Click here to see answer by bonster(299) About Me 

Question 6409: How do you solve these linear inequalities algebraically?
3x+4y=5
Ax+3y=B

Click here to see answer by longjonsilver(2297) About Me 

Question 7035: HOW MANY BIRTHDAYS WILL YOU CELEBRATE IF YOU ARE ONE MILLION MINUTES OLD?
THANK YOU

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Question 7049: 2/34=5x/17
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Question 7193: I also need help with simplifying this problem:
(a^1/3 b^1/6)^2 (a^1/3 b^2/3).
I am not quite sure what to do with this. I usually dont have a problem simplifying but this is just confusing to me. Will some one help me understand it?

Click here to see answer by Earlsdon(6294) About Me 

Question 7192: Will someone help me with factoring?
I have 10a^2 - 27ab + 5b^2
I dont quite know where to start.
Thank you so much in advance.It is a great thing that you people do to help others.

Click here to see answer by longjonsilver(2297) About Me 

Question 7317: solve the following equation by finding its zeros.
x^3+9x^2+26x+24=0

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Question 7318: solve the following equation. express roots to the nearest hundredth.
2m^2-m-7=0

Click here to see answer by ichudov(507) About Me 
Question 7318: solve the following equation. express roots to the nearest hundredth.
2m^2-m-7=0

Click here to see answer by glabow(165) About Me 

Question 7369: What is 2(x-3)-5=4(x-5)?
Can you also show the steps.

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Question 7487: Find the x-intercept and y-intercept of the equation 5x − 3y = 30.
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Question 7594: 2x + y = 4, x=1
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Question 7622: How do I solve the equation y=square root of 3y+10?
Click here to see answer by prabhjyot(165) About Me 

Question 7700: Please help solve this problem thanks-
Solve each system by the addition method
Nickels and Dimes. Winborne has 35 coins cinsisting of dimes and nickels. If the value of his coins is $3.30, then how many of each type does he have?

Click here to see answer by drglass(89) About Me 

Question 7701: Please help solve this problem. Thank You
Solve each system by the addition method. Determine whether the equations are independent, dependent, or inconsistent.
5x - y = 1
10x - 2y = 2

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Question 7698: Write a system of two equations in two unknown numbers for each problem. Solve each system by substitution.
Ticket Sales. Tickets for a concert were sold to adults for $3 and to students for $2. If the total receipts were $824 and twice as many adult tickets as student tickets were sold, then how many of each were sold?

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Question 7678: need to find the x,y intercepts of this equation
4x-6y = -24
thank you
dave

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Question 7762: use the distributive property to rewrite the expression without parenthesis and multiply together any numbers
(3y-7)(-2)
thank you
dave

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Question 7751: I can not find an answer to this, I tried to factor but that did not turn out right. Please help.
(x+4)/(6x^2+5x-6)+(x)/(2x+3)= (x)/(3x-2)

Click here to see answer by Earlsdon(6294) About Me 

Question 7935: Here is my equation : A(M+N)=BN-4m
This is what I have so far: -BN+AN=-AM-4M
Is this right? If so what's next?

Click here to see answer by AnlytcPhil(1806) About Me 

Question 7960: need help solving this problem:
A=18.98 B=3.3 C=2.28 solve for D
A + B x C >= D
thanks.

Click here to see answer by arunpaul(104) About Me 

Question 7940: I am very confused as to how to Solve each system by the additional method. Can someone help me understand this and solve it please?
17.) x + y = 48
12x + 14y = 628

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Question 7965: Simplify (x^2+10x+16)/(x^2-64)
Click here to see answer by bonster(299) About Me 

Question 7975: need help solving this, please.

A=17.30 B=2.07
A + 3.3 x B >= 26
Thank you.

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Question 8029: How do I find out if this equation (y=2x+1) is linear or not?
Click here to see answer by glabow(165) About Me 

Question 7979: Hi I have this due tonight and I just do not understand can you help me out please? Thank You-
Write a system of two equations in two unknowns for each problem. Solve each system by substitution.
Household Income. Alkena and Hsu together earn $84,326 per year. If Alkena earns $12,468 more per year than Hsu, then how much does each of them earn per year?

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Question 8054: Can you recommend a website that I can use as a Tutor while taking a College Algebra class I remember nothing I need the to rebuild my knowlege base. I have not had math classes in over 20 years. Help please.
Click here to see answer by CharStar(110) About Me 

Question 8060: please! someone could help me.. i'm really out of idea how can i solve out this problem.
Find the equation of the straight line perpendiculat to the line with equation y= -2/3x + 3/7 which passes through the point (2,4). giving your answer in the form ax+by+c=0
please.. help me solve this..

Click here to see answer by longjonsilver(2297) About Me 

Question 8061: And here's another problem that i don't know the steps to solve it out.
Find the equation of the perpendicular bisector of the line segment joining the points (1,2) and (3,1). Giving the answer in the form y=mx+c.
((i know it sounds easy, all i need is its formula or the steps to solve it. And that would really help me))

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Question 8051: x+y=z then x+y-z=0
2(x+y)=2(z) 3(x+y)=3(z)
2x+2y=2z 3x+3y=3z
2x+2y-2z=0 3x+3y-3z=0
2(x+y-z)=0 3(x+y-z)=0
then 2(x+y-z)=3(x+y-z)
then 2=3
Surely this can't be?

Click here to see answer by ichudov(507) About Me 

Question 8024: For the line 2x-y=8
a) what is the x- intercept of the line?
what is the y-intercept of the line?
b) What is the slope of the line?
c)Graph the line on a Cartesian coordinate plane.
d) Where does the graph of the line x + y = 7 intersect the graph of the given line?
e) Solve the system of equations created by using the equation 3x- 2y = 13 and the given line.
f) Graph the system of inequalities :
2x-y greater than or equal to 8
x+ y less than 7

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Question 8108: I have a problem with the following points: {-2,8} and {-2,-1} when i do the slope formula i get an undefined slope how do i finish the problem?
Click here to see answer by prince_abubu(198) About Me 

Question 8337: 3(t-8) + 2t = 7 + t can you help solve not sure if my answeris correct I came up with t= 31/4 or 7 and 3/4
Click here to see answer by ichudov(507) About Me 

Question 8551: I am trying to figure this out and keep running into a road block.
Multiply.
3xy^3*2x^2y*4xy^2=
This is as far as I have gotten and not sure that I am correct so far.
7xy^5*2x^2y=This doesn't look like I am on the right track for some reason.

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Question 8757: please help me solve %28%28x%2B8%29%5E2%29=16
Click here to see answer by George(3) About Me 

Question 8904: 2(p + 5) - (9 + p) = -3. I can not figure out how the book got the answer of -4. Could you please show all the steps invloved?
Thanks,
Brandy

Click here to see answer by Abbey(339) About Me 

Question 9108: I have a promblem that I can't solve. I'm confused about the whole problem. Please help me.
-[3x-(2x+5)] = -4-[3(2x-4)-3x]

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Question 9018: -6+3
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Question 9270: 1/3(x-4)=1/2(x-6)
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