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

Tutors Answer Your Questions about Linear-systems (FREE)

Question 643525: Solve the system of equations below
4x+y+16
2x+3y+-2
Click here to see answer by Alan3354(30993)

Question 643653: If x=16 and y=6 what is the answer to 3x+y ?
Click here to see answer by MathLover1(6625)

Question 643763: y=5x-6
Click here to see answer by Alan3354(30993)

Question 643764: y=x^3
Click here to see answer by Alan3354(30993)

Question 643834: hello,
I am having trouble finiding the lcd for this equation. Id appreciate the help on this problem but also tips on how to find it in problems like this.
thank you, carla
x/(2x+2)=-2x/(4x+4)+(2x-3)/(x-4)
so far i know i have to get the lcd for 2x+2,4x+4 and x-4 but since there was that -4 im at a loss, thank you
Click here to see answer by Alan3354(30993)

Question 643846: Solve the equation 4x^2y+5y=2x for y as a function of x.
Im stumped
Click here to see answer by jim_thompson5910(28548)

Question 643732: how do I solve for y: 3x+y=3
Click here to see answer by kekegeter (57)

Question 644181: There are 20 animals in the farm consisting of cows and chickens. If there are 56 legs in all, how many cows are there?
Click here to see answer by lynnlo(4155)

Question 644182: A cetain factory employs 60 workers. If four out of five workers are married, how many married workers are employed by the factory?
Click here to see answer by lynnlo(4155)

Question 644307: how do you solve 1-5 using the substitution method.
1. 4x+3y=11
x=3y-1
2. 2x+3y=5
x=4-2y
3. 3x-2y=11
y=5-2x
4. x+y=-5
4x-2y=10
5. y=2x-1
y=2-x
Click here to see answer by unlockmath(1599)

Question 644341: Can you help me answer this?
F(x)=, if x<=(less than or equal to)-1
, if x>-1
The question is: Evaluate the function for the given value of X.
f(-2) is the value of X.
Im not sure of this is System of Equations but i think its very close to it.
Click here to see answer by jim_thompson5910(28548)

Question 644369: solve the equation 4[p-2-(4+2p)] = -1 for P
Click here to see answer by jim_thompson5910(28548)

Question 644633: I need to use the method of substitution to solve these linear equations.
3x-y=3
7x-2y=11
Click here to see answer by jim_thompson5910(28548)

Question 644688: 3x+4y=2
5x+9y=1
Click here to see answer by reviewermath(510)

Question 644694: Use the method of substation to solve the system of linear equations
6a=6-b
6a=3-b

Click here to see answer by MathLover1(6625)

Question 644693: use the method of substitution to solve the system of linear equations.
2x-y=4
5x-2y=11
what is the solution (should be an ordered pair)
Click here to see answer by MathLover1(6625)

Question 644845: May You Give Me An example of how to simplify 5-3x+y+10x+3y+6
Click here to see answer by MathLover1(6625)

Question 645073: The line passes through the point (7,9) but has no slope.
Click here to see answer by stanbon(57290)

Question 645151: I keep getting fractions and decimals when my teacher said the answers were whole/real numbers. but the problem is:
2w-x+5y+z=-3
3w+2x+2y-6z=-32
w+3x+3y-z=-47
5w-2x-3y+3z=49
find w,x,y,and z.
Click here to see answer by jim_thompson5910(28548)

Question 645170: Can you help me solve this problem, please?
X-y =1
Y= 5
Click here to see answer by Alan3354(30993)

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(10682)

Question 645963: how would you solve 5x-2y=3 and -x+6y=-2 using any method
Click here to see answer by solver91311(16877)

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(6958)

Question 646182: Please help me solve this equation:
x + y = 2
5x - 6y = 15
Click here to see answer by ewatrrr(10682)

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(57290)

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

Click here to see answer by MathLover1(6625)

Question 647373:

Click here to see answer by htmentor(789)

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(28548)

Question 648396: solve for x.
-(1+7x)-6(-7-x)=36
Click here to see answer by jim_thompson5910(28548)

Question 648399: solve
8(4k-4)=-5k-32
Click here to see answer by jim_thompson5910(28548)

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(378)

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

Click here to see answer by DrBeeee(378)

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(726)

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(4155)

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(9668)

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