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

Tutors Answer Your Questions about Linear-systems (FREE)

Question 656169: Write the equation 5x-6y-12=0 in the slope intercept form and then find the slope and y-intercept of the corresponding line.

Click here to see answer by MathLover1(20850)

Question 656167: Determine the value of k for which system of linear equation has no solution.
2x-y=3
4x+ky=5
Click here to see answer by MathLover1(20850)

Question 656167: Determine the value of k for which system of linear equation has no solution.
2x-y=3
4x+ky=5
Click here to see answer by Edwin McCravy(20056)

Question 656167: Determine the value of k for which system of linear equation has no solution.
2x-y=3
4x+ky=5
Click here to see answer by chandrak(4)

Question 656203: use the substitution method
4x-y=4
9x-2y=10
what is the ordered pair

Click here to see answer by lynnlo(4176)

Question 656249: Solve the system by the method of your choice: x=6y-9, -2x + 12y=18
Click here to see answer by MathDazed(34)

Question 656022: use the method of substitution to solve the system of linear equations
3x-y=5
7x-2y=12

the solution is _______(order pair)
Click here to see answer by MathDazed(34)

Question 656022: use the method of substitution to solve the system of linear equations
3x-y=5
7x-2y=12

the solution is _______(order pair)
Click here to see answer by MathTherapy(10552)

Question 656642: 3x+4y=36
Click here to see answer by solver91311(24713)

Question 656788: solve each system by substitution.
1) y= x+2
y= -3x+2
4) y= -3x+2
y= -2x+2
Click here to see answer by solver91311(24713)

Question 656791: The length of a rectangle is 3 times its width. If the perimeter of the rectangle is 32 cm, find its length and width.
Click here to see answer by shweta(56)

Question 657334: building A is 150 feet shorter than building B. The total height of the two building is 1490 feet. Find the height of each building
Click here to see answer by best82(13)

Question 657336: how do i solve 4x+3y=14 .... using the addition method
9x-2y=14
Click here to see answer by best82(13)

Question 657368: Find an equation of the line L that passes through the point
(-2, 4)
and satisfies the given condition. (Let x be the independent variable and y be the dependent variable.)
L is perpendicular to the line
2x + 5y = 10

Click here to see answer by solver91311(24713)

Question 657572: I have to graph points on a graph with this linear programming problem:
16X-13Y=79 I know that the plotting points are (9,5) but how did they get this answer?
Click here to see answer by rfer(16322)

Question 657612: Explain how you can determine if two lines are parellel [sic] when only given the standard form of the respective linear function?
Click here to see answer by Alan3354(69443)

Question 657651: Determine graphically the solution set for the system of inequalities.
4x − y ≥ 8
8x − 2y < −2
Click here to see answer by solver91311(24713)

Question 657350: Hi I need if anyone could help me with this prob..
1. A carpet is to cover 2/3 of the floor area of a room 20m by 30m. The uncovered part of the floor is to form a strip of uniform width around the carpet. Find the dimensions of the carpet.
Click here to see answer by ankor@dixie-net.com(22740)

Question 657674: y=2x
Click here to see answer by Alan3354(69443)

Question 657927: A flat retangular pice of aluminum has a perimeter of 60 inches. The length is 14 inches longer than the width. Find the width.
Click here to see answer by graphmatics(170)

Question 658054: find the x-intercept of the linear equation 2x-4y=-12
Click here to see answer by colliefan(242)

Question 658072: 3x+5y-6x+10
Click here to see answer by jim_thompson5910(35256)

Question 657997: 2x+3y+4z=10
x+y-z=3
5x+6y-7z=23
Click here to see answer by jim_thompson5910(35256)

Question 658154: After your 528 mile trip to Escondido you fill your car with gas. The car was full of gas when you left home. It takes 16 gallons top fill your car in Escondido. What gas mileage did you get on the trip?
Click here to see answer by chriswen(106)

Question 658210: Solve the following linear systems by substitution
m=8j
-m+2=-7j
Click here to see answer by jim_thompson5910(35256)

Question 658659: how do you solve 5/2x-1=3/2-4, I have already simplified it to 10x-4=6x-16 but now I am stuck

Click here to see answer by jim_thompson5910(35256)

Question 658680: The solution of the following system of linear equations is the point (1,-1) y=3x-4
y=-4x+3
Click here to see answer by Tatiana_Stebko(1539)

Question 658684: Use the elimination method to solve the following system of equations.
2x + 4y � 3z = �7
3x + y + 4z = �12
x + 3y + 4z = 4

Click here to see answer by Alan3354(69443)

Question 658850: Determine the values of k such that the system of linear equations does not have a unique solution. (Enter your answers as a comma-separated list.)

x
+
y
+
kz
=
9

x
+
ky
+
z
=
6

kx
+
y
+
z
=
5

Click here to see answer by MathLover1(20850)

Question 658928: 5X+7=8X+5
X=2/3
I NEED HELP WITH STEPS
I HAVE:
5X+8X=7-7=5-5
13X=0
What is next or are these steps correct?
Click here to see answer by jim_thompson5910(35256)

Question 658946: Two buses leave atlanta at the same time traveling in opposite directions. One travels at an average speed of 75 mph and the other at 60mph. In how many hours will they be 405 miles apart? Let x= time of travel for the first bus and y= time of travel for the second bus. Then the system that models the problem is {x = y
{75x+60y=405 .. Please help me RIGHT AWAY!
Click here to see answer by jim_thompson5910(35256)

Question 658953: the solution to this system of equations is (-2,1). Find the values for p and q.
px+(9-q)y=-10
(3p+1)x-(q-6)y=-21
Click here to see answer by jim_thompson5910(35256)

Question 659049: Hello, I would like help on this problem:
I need to write the point (-5,3) and perpendicular to the graph of 2x + 6y =7 in the standard form of ax + by = c
I am confused on the steps and not sure if I'm solving it right.
Click here to see answer by Theo(13342)

Question 659093: if a line and a plane intersect, then they intersect in exactly one what?
Click here to see answer by colliefan(242)

Question 659348: I need help solving a system of equations for x and y using Cramer's rule.
2x-5y=16
3x-4y=10

Click here to see answer by jim_thompson5910(35256)

Question 659370: I need help solving a system of equations for x and y using Cramer's rule. I'm completely lost. The answers I came up with are x=1/2 and y=28/23. Is this correct? Thank you.
2x-5y=16
3x-4y=10
Click here to see answer by jim_thompson5910(35256)

Question 659387: Solve the equation for y. Then complete the given ordered pairs. (Example 4)
8x+y=9
Click here to see answer by lynnlo(4176)

Question 659442: Hello again :)
I would also like help on putting the two points ( 1,5) and (-3, 1) in ax + by =c form
Click here to see answer by Alan3354(69443)

Question 659437: Hello, I would like help on the steps to put the two points ( 4,1) and ( -1,7) in ax + by = c form. ( standard form)
Please and thank you.
Click here to see answer by Alan3354(69443)

Question 659444: How do I use elimination to solve the system: 2x-5y=-46 x+10y=77?
Click here to see answer by MathLover1(20850)

Question 659519: 3x+5y=-16+3x-2y=-2 what do x and y equal?
Click here to see answer by reviewermath(1029)

Question 659519: 3x+5y=-16+3x-2y=-2 what do x and y equal?
Click here to see answer by lynnlo(4176)

Question 659517: standard form and slop intercept form for (0,9) and (1,11)
Click here to see answer by MathLover1(20850)

Question 659815: Solve 2x + 5y= 16
y= x - 1
Using Substitution, Then verify your solution graphically.

Click here to see answer by lynnlo(4176)

Question 659815: Solve 2x + 5y= 16
y= x - 1
Using Substitution, Then verify your solution graphically.

Click here to see answer by MathLover1(20850)

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