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

Tutors Answer Your Questions about Linear-systems (FREE)

Question 645170: Can you help me solve this problem, please?
X-y =1
Y= 5
Click here to see answer by Alan3354(69443)

Question 645421: Solve this system of equations using substitution. Put your answer in ordered pair form, (x, y).
x = 4y
3x - 2y = 20
Click here to see answer by 10301650(32)

Question 645591: hi my name is jennifer and im having trouble answering this mathematical question of algebra i would appreciate if you showed me step by step how to do it thank you
2x + 3y = 5
5x +4y = 16 &

4x � y = 14
5x + 2y = 11

Click here to see answer by ewatrrr(24785)

Question 645963: how would you solve 5x-2y=3 and -x+6y=-2 using any method
Click here to see answer by solver91311(24713)

Question 646001: Solve the equation for y. Then find the value of y for the given value of x.
3x-6y=6; x=2
Click here to see answer by abdulrasid84@gmail.com(4)

Question 646037: if the average of nine numbers is 9.5, what is the sum of the numbers?

Click here to see answer by nerdybill(7384)

Question 646182: Please help me solve this equation:
x + y = 2
5x - 6y = 15
Click here to see answer by ewatrrr(24785)

Question 646221: Please help me solve these two equations:
1. y = 2 - 6x
1/2y - x = 1
2. 1/x + 1/y = 1
3/x - 2/y = 8
Click here to see answer by stanbon(75887)

Question 646261: 12+8x-4+3x+19

Click here to see answer by MathLover1(20850)

Question 647373:

Click here to see answer by htmentor(1343)

Question 647790: 5y-2(y-5)=19 what does y equal
Click here to see answer by Algebraic(50)

Question 647790: 5y-2(y-5)=19 what does y equal
Click here to see answer by shweta(56)

Question 647638: Its Simultaneous equations.
Please solve ;
x-y=4
4x-6y=21
Thanks !
Click here to see answer by shweta(56)

Question 648011: determine whether the following lines are parallel, perpendicular, or neither:
x-5y=15 & 5x +y =25
Click here to see answer by Algebraic(50)

Question 648397: 24a-22=-4(1-6a)
Click here to see answer by jim_thompson5910(35256)

Question 648396: solve for x.
-(1+7x)-6(-7-x)=36
Click here to see answer by jim_thompson5910(35256)

Question 648399: solve
8(4k-4)=-5k-32
Click here to see answer by jim_thompson5910(35256)

Question 648398: I have tried solving four homework problems like this for hours but I just don't know what to do!
The problem reads: find the equation of the line perpendicular to the line y=3 and passing through the midpoint of the segment joining (2,4), (-6,10).
This is what I have tried: y=3 (2+-6)/2, (4+10)/2. I get (-2,7) and then I tries using the point-slope form: y-7=0(since y is horizontal and the slope is zero, right?) (x--2)
y=x+2-7 but then I don't know what to do. On the back of the textbook it says the answer is x=-2. I don't know how to get that!
Click here to see answer by DrBeeee(684)

Question 648415: solve for v.
-6(1-5v)=54

Click here to see answer by DrBeeee(684)

Question 648517: I'm having problems with this can anyone help me?
Solve the system by graphing, if possible. (If the system is inconsistent, enter INCONSISTENT. If the system is dependent, enter DEPENDENT.)
3x − 3y = 21
x − y = 13

Click here to see answer by swincher4391(1107)

Question 648494: Solving by Elimination:
I am having a problem with the following, can you please work it out so I can see if I am doing this right?
5x +7y = 6
2x -3y = 11

I eliminated the x by multiplying top by 2 and bottom by -5 and received y = -43/29 and I am stuck here
Click here to see answer by lynnlo(4176)

Question 648721: flying with the wind, a bird has a speed of 90kph.but flying against the wind of only half that speed, it only made 30kph. find the speed of the wind and the bird's rate of flying when there is no wind.
Click here to see answer by josmiceli(19441)

Question 648952: hello, I have been stuck on a math problem and i need to
know how would I do this problem?
Click here to see answer by Alan3354(69443)

Question 649043: solve each equation by using substitution
1. y=3x+4 & y=4+x
Click here to see answer by lynnlo(4176)

Question 649252: Determine the value of k for which the system of linear equations
2x−y =5
6x+ky=2
Has no solution.
k=?
Click here to see answer by MathLover1(20850)

Question 649346: 5x+7=6x
Click here to see answer by jim_thompson5910(35256)

Question 649342: Find the x- and y-intercepts of 2x + y = 70
Click here to see answer by jim_thompson5910(35256)

Question 650241: whats the linear system for
y=4x+6
y=-x+1
Click here to see answer by Alan3354(69443)

Question 650241: whats the linear system for
y=4x+6
y=-x+1
Click here to see answer by sheldonbbtrocks(115)

Question 650533: 4|3-z|-8=8

Click here to see answer by stanbon(75887)

Question 650678: Please help me solve this question: Write the equation for the line that has a slope of 2 and passes through the point (1,3) in standard form
Click here to see answer by lwsshak3(11628)

Question 650787: what is the solution?
2x+5y=34
x+2y=14
a:x=-26; y=20
b:x=2; y=6
c:x=3 y=5.5
d:x=10;y=2
Click here to see answer by ewatrrr(24785)

Question 650784: Solve the system of linear equations below.
4x - 3y = 17
5x + 4y = 60
Click here to see answer by Aaniya(63)

Question 650850: Here is the problem:
2/x + 3 = 3/2x + 25/8
Click here to see answer by MathLover1(20850)

Question 650859: 3/x+2 +5 = 23/x+2
Click here to see answer by ewatrrr(24785)

Question 650870: y=x+6/7x-35 - 5/x-5 - 2/7
Click here to see answer by ewatrrr(24785)

Question 650865: 2x/x+1 = 5- 2/x+1
a). Write the values of variable that make a denominator zero. There are the restrictions.
b) Keeping the restrictions in mind, solve the equation.
Click here to see answer by ewatrrr(24785)

Question 650856: x/3 = 3+ x-25/5
Click here to see answer by ewatrrr(24785)

Question 650863: One positive number is 5 times another number. The difference between the two numbers is 796, find the numbers
Click here to see answer by ewatrrr(24785)

Question 650882: I want to know how can 2000=20x+10y be considered a linear equation. Is it because you can make Y a linear function of X or because both standard and slope-intercept form can be used to graph the linear function.
Click here to see answer by rfer(16322)

Question 650885: 9(x+3)=6(x-3)+2(x+15)
Click here to see answer by rfer(16322)

Question 650885: 9(x+3)=6(x-3)+2(x+15)
Click here to see answer by jim_thompson5910(35256)

Question 650883: (5x+1)/9-(4x+1)/2=1/6
Click here to see answer by ewatrrr(24785)

Question 650888: is (4,10)a solution of 5x+10y=120 and how can you check using a graph and equation?
Click here to see answer by rfer(16322)

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