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

Tutors Answer Your Questions about Linear-systems (FREE)

Question 394046: I am to solve the linear system by graphing for the equation 2x-2y=2 and 2x-y=6. I know I have to get y by it self to have it in y intercept form. This is where I am having problems. can you help.
Click here to see answer by solver91311(24713)

Question 394067: Simplify the following expression.
-4(-6v + u) + 3 (-6u - 2v)
Click here to see answer by rfer(16322)

Question 394066: Evaluate.
2 * 3 - ((-1)^2 - 4)^2
Click here to see answer by rfer(16322)

Question 393402: |7x-6|=0

Click here to see answer by robertb(5830)

Question 394047: Graph
y=-3x
y=4x-5
Click here to see answer by mananth(16946)

Question 394171: -11(m-3)-8m=-2(10m-9)
Click here to see answer by MathLover1(20850)

Question 394190: how to graph x-2y=3
Click here to see answer by ewatrrr(24785)

Question 394327: If y= 4x - 5 and 5y = kx - 25 are equivalent linear equations, what is the value of k?
Click here to see answer by ewatrrr(24785)

Question 394381: Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this.
8x + 10y = 92
24x + 11y = 162
Click here to see answer by jim_thompson5910(35256)

Question 394424: y=6x
2x+3y=-20
Click here to see answer by jim_thompson5910(35256)

Question 394425: Subtract the lower expression from the upper one.

dy+az
ey-bz
_____________
Click here to see answer by jim_thompson5910(35256)

Question 394410: systems of linear equations and inequalities, please help me solve these equations, i'm stumped
#1 v-w=5
v+2w=4
#2 2g-3h=0
3g-2h=5

Thank you, Jack
Click here to see answer by mananth(16946)

Question 394447: what is the answer for [9-2x]=19
Click here to see answer by EricL(29)

Question 394455: The point (17, 0) lies on the line 8x + 11y = 136. Determine if this point is a solution of the system
8x + 11y = 136
0x � y = -8

Click here to see answer by robertb(5830)

Question 395130: what do the equations 3x - 2y = 3 and -3x + 2y = 2 have in common

Click here to see answer by stanbon(75887)

Question 395189: Amy paid $89.65 for a pair of running shoes during a 15%-off sale. What was the regular price?
Click here to see answer by mananth(16946)

Question 395268: 7[3m - (m + 2)] > -6(m - 3)
Click here to see answer by stanbon(75887)

Question 395302: solve by addition, indicate whether each system is independent, dependent or inconsistent.
-3x + 3y= -20
2x - 3y = 7

Click here to see answer by jim_thompson5910(35256)

Question 395356: Solve using the substitutiion method
-3x+y=4
x+3y=22
Click here to see answer by jim_thompson5910(35256)

Question 395354: loooking at the lines 0.11x-y=-0.85. are the lines intersecting, parallel or perpendicular?
Click here to see answer by jim_thompson5910(35256)

Question 395443: {(6 x -5 y=4),(6 x + 3 y=3)}addition method??
Click here to see answer by MathLover1(20850)

Question 395470: 9) how to solve y=2x+10 with the substitution of y=-2x-6
Click here to see answer by jim_thompson5910(35256)

Question 395472: You start a pet-sitting service. You spend 35$ on advertising & you plan to charge 5$ a day to watch each pet.
a) Write an equation to relate your daily income 'y' to the number of 'x' you watch.
b) Graph the equation
measurements:
y= 20 , 40 , 60 , 80
x= 2, 4, 6, 8
Please, help meee.
Click here to see answer by josmiceli(19441)

Question 395473: 2x-y=-3
x+y=9
Click here to see answer by jim_thompson5910(35256)

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(20850)

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(7193)

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(75887)

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(75887)

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(20850)

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(16946)

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(16322)

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(16946)

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(75887)

Question 396293: Can someone solve and show work for:
5w�-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(20850)

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(16322)

Question 396187: THe derivate of tan^-1(lnx+(x^2+1)^1/2)
Cheers in advance
Click here to see answer by richard1234(7193)

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(69443)

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(7193)

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(75887)

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(19441)

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(7193)

Question 397539: dealing with solving linear systems how do i do y-2x=0 6y+2x=o
Click here to see answer by MathLover1(20850)

Question 397559: Solve for u.
7u + 2/3 = 4/5u + 4/3
Click here to see answer by solver91311(24713)

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