Questions on Algebra: Systems of Linear Equations answered by real tutors!

Tutors Answer Your Questions about Linear-systems (FREE)

Question 395672: What does the y-intercept represent in a linear equation and a word problem?
Click here to see answer by jrfrunner(365)

Question 395672: What does the y-intercept represent in a linear equation and a word problem?
Click here to see answer by MathLover1(6634)

Question 395915: Dont know what this is and how to do it at all. Teacher does not explain at all.
y=2x-9
x+3y=8
Solve each system by substitution
Click here to see answer by richard1234(5390)

Question 395915: Dont know what this is and how to do it at all. Teacher does not explain at all.
y=2x-9
x+3y=8
Solve each system by substitution
Click here to see answer by stanbon(57361)

Question 395926: Need help with this linear equation word problem.
Use system of equations to solve problem.
A farmer raises wheat and corn on 130 acres of land. He wants to plant 62 more acres of wheat than corn. How many acres of each should he plant.

Click here to see answer by stanbon(57361)

Question 395928: Need help with solving each system by graphing. Appreciate any assistance. Dont understand it at all.
y = -x + 2
y = x - 4
and......
y= -1/4x - 1
y= 3/4x + 3
Click here to see answer by MathLover1(6634)

Question 395931: Write the standard form of the equation of the line that passes through the given points. Can you show me how you got this?
(5,8), (3,2)
Click here to see answer by mananth(12270)

Question 395929: Write the standard form of the equation of the line that passes through the given point and has the given slope. Can you show me how you got this?
(4,3), m=2
Click here to see answer by rfer(12662)

Question 396049: the sum of two numbers is 26. three times the second number is two more than the first. what are the two numbers?
Click here to see answer by mananth(12270)

Question 396331: how do you determine what the x and y is? the problem is {4x+2y= -2
{y = 6x-5

Click here to see answer by stanbon(57361)

Question 396293: Can someone solve and show work for:
5w²-2w=0
Click here to see answer by sudhanshu_kmr(1152)

Question 396303: How would I go about on solving this problem?
10m − 3 + m < 30
Click here to see answer by MathLover1(6634)

Question 396465: the perimeter of a rectangle is 86 inches. The length exceeds the width by 9 inches. Find the length and the width? Where do I start?
Click here to see answer by rfer(12662)

Question 396187: THe derivate of tan^-1(lnx+(x^2+1)^1/2)
Cheers in advance
Click here to see answer by richard1234(5390)

Question 396847: at what point does the graph of 3x+5y-z=15 cross the x-axis?
A) (0,3,0)
B) (5,0,0)
C) (0,0, -15)
D) (0,-3,0)

Click here to see answer by Alan3354(30993)

Question 397001: What is the subsitution of ' x+y=-1 and x+y=8 ' and how many solutions does it have ?
Click here to see answer by richard1234(5390)

Question 397052: solve the linear system: x-2y=-5 , -3x+y=0 I need step by step help.
Click here to see answer by stanbon(57361)

Question 397052: solve the linear system: x-2y=-5 , -3x+y=0 I need step by step help.
Click here to see answer by josmiceli(9686)

Question 396878: Please solve this for me, this is on Graph of Linear Equations. Please tell me how you arrived at the answer.
y-x +1
Click here to see answer by richard1234(5390)

Question 397539: dealing with solving linear systems how do i do y-2x=0 6y+2x=o
Click here to see answer by MathLover1(6634)

Question 397559: Solve for u.
7u + 2/3 = 4/5u + 4/3
Click here to see answer by solver91311(16897)

Question 397685: Find an equation of a line that passes through points (6,5) and is perpendicular to 2y+3x=6
Click here to see answer by robertb(4012)

Question 398195: Can you solve this system ?
-3x+2y=4
6x-4y=14
Click here to see answer by rfer(12662)

Question 398195: Can you solve this system ?
-3x+2y=4
6x-4y=14
Click here to see answer by Alan3354(30993)

Question 398209: Solve each system by substitution or addition, whichever is easier.
52. 2y - x = 3
x = 3y -5

Click here to see answer by ewatrrr(10682)

Question 398155: Solve each system by the substitution method.
X+6y=-2
5x-20y=5

Click here to see answer by ewatrrr(10682)

Question 398146: Solve each system by the addition method. Determine whether
the equations are independent, dependent, or inconsistent.
3x - 4y =9
-3x +4y =12

Click here to see answer by richard1234(5390)

Question 398147: Solve each system by substitution or addition, whichever is easier.
2y-3x=-1
5y+3x=29

Click here to see answer by richard1234(5390)

Question 398301: I have to solve each system by graphing, I have to find the number solutions and write the point. The equations are 2x+4y=2 and 3x+6y=3
Click here to see answer by mananth(12270)

Question 398299: I have to solve each system by graphing, I have to find the number solutions and write the point. The equations are 3x+3y=12 and 2x+2y=2
Click here to see answer by mananth(12270)

Question 398300: I have to solve each system by graphing, I have to find the number solutions and write the point. The equations are 2x+2y=16 and 3x=3y+6
Click here to see answer by mananth(12270)

Question 398679: what is the value of (7+5x-6y)+(2y+8x-3)
Click here to see answer by rfer(12662)

Question 398759: An empty swimming pool can be filled in 10 hours. When full. the pool can be drained in 19 hours. How long will it take to full the empty pool if drain is left open.
Click here to see answer by mananth(12270)

Question 399049: Find the values for m and b so that the system y=3/4x-2 and y=mx+b has (8,4) as a solution.
Click here to see answer by solver91311(16897)

Question 399138: y=2x-6
x+y=9
Click here to see answer by mananth(12270)

Question 399133: What is the equation of the ellipse with vertices (6, 0), (-6, 0) and co-vertices (0, 2), (0, -2)?
Click here to see answer by Tatiana_Stebko(1326)

Question 399217: what are the intercepts and checkpoint for 6x-2y=12? i got (-6,0) (0,2) but can't get the checkpoint. if iam wrong could you lead me the right way. thanks.
Click here to see answer by richard1234(5390)

Question 399236: Please help me solve this system. I'm very confused on it. "You are choosing between two different cell phone plans. The first plan charges a rate of 24 cents per minute. The second plan charges a monthly fee of $39.95 plus 11 cents per minute. How many minutes would you have to use in a month in order for the second plan to be preferable?"

Click here to see answer by ankor@dixie-net.com(15656)

Question 399399: how do you write 24,930 in words
Click here to see answer by ewatrrr(10682)

Question 399568: what is the linear equation of -3x+2=0
0=5x+3
0=-2x+4
-x+1+0
i really need help with these
Click here to see answer by edjones(7569)

Question 399643: Hello. How can I solve 3x-5y= 7
5x-2y=negative 1.
I need to know a quick and easy way. I've been trying the add it straight down method but I'm a little confused.
Please Help!

Click here to see answer by checkley79(3050)

Question 399731: I don't understand how to make a word problem into a linear system. This is an example in my Algebra I book:
You are planning a party for a friend. You can have the party at a pizza place for $8 per person plus $30 for favors and a small cake, or at a taco place for $12 dollars per person plus $14 for a large cake.
Could you please create a linear system from this data?
Click here to see answer by solver91311(16897)

Question 399804: Hello! I would please like to know 2 linear equations i could set up for the following word problem:
At the end of the 2000 baseball season, The New York Yankees and the Cincinnati Reds had won a total of 31 World Series. The yankees had won 5.2. times as many World Series as the Reds. How many World Series did each team win?
I've tried x+y=31
and 5.2x+y=31 I just dont understand it. :(
Click here to see answer by scott8148(6628)

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