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

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Tutors Answer Your Questions about Linear-systems (FREE)


Question 58913: Solve:
4x^2+1=2x

Click here to see answer by checkley71(8403) About Me 

Question 59066: Solve each of the following systems by substitution.
5x - 2y=-5
y - 5x = 3

Click here to see answer by funmath(2925) About Me 

Question 59064: Solve each of the following systems by addition. If a unique solution does not exist, state
whether the system is inconsistent or dependent.
2x+3y=1
5x+3y=16
and
x+5y=10
-2x-10y= -20
thank you

Click here to see answer by funmath(2925) About Me 

Question 59063: Find values for m and b in the following system so that the solution to the system
is (-3, 4).
5x + 7y = b
mx + y = 22
Thank you

Click here to see answer by funmath(2925) About Me 

Question 59266: i dont understand how to do this problem:
y=3x-7
y=-x+1

Click here to see answer by funmath(2925) About Me 

Question 59323: what is 2x-3y=12
x=4y+1
substituion form

Click here to see answer by checkley71(8403) About Me 
Question 59323: what is 2x-3y=12
x=4y+1
substituion form

Click here to see answer by funmath(2925) About Me 

Question 59325: y= -4/3+4
Click here to see answer by checkley71(8403) About Me 

Question 59357: Solve the system.
3x+4y=-3
2x+y=8

Click here to see answer by funmath(2925) About Me 

Question 59356: Is(5,-2) a solution of the system?
2x+6y=-2
2x+y=6

Click here to see answer by funmath(2925) About Me 

Question 59360: Data from 1988 through 2000 showing the percentage of Americans for and against the death penalty for a person convicted of a murder. The data can be modeled by the following system of equations:
13x + 12y = 992 The percent, y, in favor of the death penalty x is the years after 1988
-x + y = 16 The percent, y, against the death penalty x years after 1988
That is the information given here is the question:
Use the substitution method to determine in which year the percentage of American in favor of the death penalty will be the same as the percentage of Americans who oppose it. For that year, what percent will be for the death penalty and what percent will be against it?
This is written exactly like it is in the book.
Thanks

Click here to see answer by funmath(2925) About Me 

Question 59412: Please help with the following problem?
Question: solve the system of equations algebraically?
#12. -5x+2y = 8
y = -3x+26

Click here to see answer by uma(370) About Me 

Question 59507: Can someone help me on this problem?
I need t solve the system by addition:
x + y = 6
x - y = 4
Thank you,
Lisa

Click here to see answer by stanbon(57361) About Me 

Question 59501: Can someone help me solve the system by graphing it for me?
I have to send it through the computer.
x - 2y = 8
x + y = -1
Thank you so much,
Lyn

Click here to see answer by funmath(2925) About Me 

Question 59520: I need some help on this problem:
I need to solve the system by substitution
x + y = 12
y = 2x
Jamie

Click here to see answer by funmath(2925) About Me 

Question 59512: Can someone help me here?
I need to solve the system by addition:
2x + 4y = 3
4x - 2y = 1
Thank you so much,
Lisa

Click here to see answer by pvaka(23) About Me 

Question 59510: Can someone help me on this?
I need to solve the system by addition:
-4x - 7y = -11
x - 2y = -1
Thank you so much!
Lisa

Click here to see answer by pvaka(23) About Me 

Question 59569: Would someone be able to help me on this problem?
Given f(x) = -2x - 4, find f(-3)
Thanks so much,
Ashley

Click here to see answer by Edwin McCravy(8909) About Me 

Question 59567: Could someone help me on this problem?
I need to rewrite the equation 4x- 10y = 11 as a function of x.
Thank you,
Sher

Click here to see answer by venugopalramana(3286) About Me 

Question 59566: Can someone help me with this problem? I put it through last night but I forgot to put in the Y.
I need to rewrite the equation 2x - 3y = -6 as a function of x
Thanks so much,
Sher

Click here to see answer by venugopalramana(3286) About Me 

Question 59500: Can someone help me solve the system by graphing it for me?
I have to send it through the computer.
x - 2y = 8
x + y = -1
Thank you so much,
Lyn

Click here to see answer by funmath(2925) About Me 

Question 59615: THIS IS FOR SUBSTITUTION EQUATION. ITS
X+3Y=-4
Y+X=0

Click here to see answer by funmath(2925) About Me 

Question 59625: Does anybody know how to do this problem?
I need to rewrite the equation 4x - 10y = 11 as a function of x
Thanks,
Jamie

Click here to see answer by funmath(2925) About Me 

Question 59624: I need some help on this problem:
I need to rewrite the equation 2x - 3y = -6 as a function of x
is it:
(A) f(x) = 2/3 x + 2
(B) f(x) = 3/2 x -3
(C) f(x) = 3/2 x -6
(D) f(x) = 2/3 x + 6
Thanks,
Jamie

Click here to see answer by funmath(2925) About Me 

Question 59486: how uo u graph y=6-x
y=x+4
and describe it as consistend and independent, consistent and dependent, or inconsistent

Click here to see answer by funmath(2925) About Me 

Question 59724: Solve for ( x, y)
6x - 2y = 16
y = 2x - 4

Click here to see answer by stanbon(57361) About Me 

Question 59720: Solve the system: x - 5y = -9
x = y - 1
One of the solutions is :
a) x = 1
b) x = -1
c) y = -2
d) y = 2
e) none of the above

Click here to see answer by funmath(2925) About Me 

Question 59713: When graphing the fallowing system the two lines __________________.
x+y=4
x+y=-4
a) are Parallel
b) intersect at one point
c) are the same
d) intersect at two points
e) none of the above

Click here to see answer by funmath(2925) About Me 

Question 59765: I tried using your solver for this problem but couldn't imput it correctly can you please help
Use substitution to solve
x = 3y - 2
2x + 4y =16

Click here to see answer by Cintchr(481) About Me 

Question 59764: Please help me solve the following :
Determine whether the system has one solution, no solution or infinitely many solutions
y = 2/3x
2x - y = -4

Click here to see answer by Cintchr(481) About Me 

Question 59767: I tried using one of your solvers for the following problem and it gave me an error and said solution not found so if you could help that would be great!
Find the solution of the system
y = x^2 + 5
and
y = 2x + 4

Click here to see answer by Cintchr(481) About Me 

Question 59763: I need help to solve please
The directions state to determine whether the system has one slutions, no solution or infinitely many solutions may you please help
y = -x + 2
3x + 3y = 6

Click here to see answer by funmath(2925) About Me 

Question 59815: Please help me :(
6(x+2)+4x=5x-23
Thank you.

Click here to see answer by uma(370) About Me 

Question 59814: Please help me :(
Is 7 a solution to the equation 4-x=3
Thank you.

Click here to see answer by uma(370) About Me 

Question 59813: Please help me :(
2(x-3)=-6
Thank you.

Click here to see answer by uma(370) About Me 

Question 59811: I cannot figrue out this word problem help please!!
Mr. Adams buys a bag or apples and a bag of pears for a total of $14. There are eight pounds of fruit in all. The apples cost $1.50 per pound, and the pears cost $2.30 per pound. How many pounds of pears did he buy??

Click here to see answer by uma(370) About Me 
Question 59811: I cannot figrue out this word problem help please!!
Mr. Adams buys a bag or apples and a bag of pears for a total of $14. There are eight pounds of fruit in all. The apples cost $1.50 per pound, and the pears cost $2.30 per pound. How many pounds of pears did he buy??

Click here to see answer by joyofmath(189) About Me 

Question 59810: Tell whether or not (-1,-5) is a solution of the system of inequalities
x + 2y < -12
and
3x - y > or equal to -2

Click here to see answer by uma(370) About Me 

Question 59808: Use Elimination to solve
x%2F3%2B4y=30
and
2x-y=5

Click here to see answer by joyofmath(189) About Me 

Question 59812: State whether the system is consistent and independent, consistent and dependent, or inconsistent. Tell why.
system is 2y + 4x = 8
and
y + 2x = 1

Click here to see answer by askmemath(368) About Me 

Question 59807: Please help solve the following :
Tell whether or not (2,3) is a solution of the system
2x-3y<0 and x + y > 4

Click here to see answer by joyofmath(189) About Me 

Question 59850: Solve the folowing system.
x - y = 1
x + y = 1

Click here to see answer by funmath(2925) About Me 

Question 59852: Solve by elimination:
2x+3y=21
5x-2y=-14

Click here to see answer by funmath(2925) About Me 

Question 59948: you are buyning two types of clothing to sell in your clothing store: t-shirts and sweatshirts. you have $1250 in your budget to spend on purchasing the clothing, and you wantto buy no more than 100 t-shirts and sweatshirts. one t-shirt cost $8 and one sweatshirt costs $15.
let x be the number of t-shits and let y be the number od sweatshits you are buying. Write a system of inequalities for the possible number of t-shirts ans sweat shirts you can buy.

Click here to see answer by stanbon(57361) About Me 

Question 59955: How do I find the solution set, given the replacement set:
5x + 2y = 5 [(2, -2), (2, -7), (5, -4), (3, -5)}

Click here to see answer by praseena(37) About Me 

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265, 5266..5310, 5311..5355, 5356..5400, 5401..5445, 5446..5490, 5491..5535, 5536..5580, 5581..5625, 5626..5670, 5671..5715, 5716..5760, 5761..5805, 5806..5850, 5851..5895, 5896..5940, 5941..5985, 5986..6030, 6031..6075, 6076..6120, 6121..6165, 6166..6210, 6211..6255, 6256..6300, 6301..6345, 6346..6390, 6391..6435, 6436..6480, 6481..6525, 6526..6570, 6571..6615, 6616..6660, 6661..6705, 6706..6750, 6751..6795, 6796..6840, 6841..6885, 6886..6930, 6931..6975, 6976..7020, 7021..7065, 7066..7110, 7111..7155, 7156..7200, 7201..7245, 7246..7290, 7291..7335, 7336..7380, 7381..7425, 7426..7470, 7471..7515, 7516..7560, 7561..7605, 7606..7650, 7651..7695, 7696..7740, 7741..7785, 7786..7830, 7831..7875, 7876..7920, 7921..7965, 7966..8010, 8011..8055, 8056..8100, 8101..8145, 8146..8190, 8191..8235, 8236..8280, 8281..8325, 8326..8370, 8371..8415, 8416..8460, 8461..8505, 8506..8550, 8551..8595, 8596..8640, 8641..8685, 8686..8730, 8731..8775, 8776..8820, 8821..8865, 8866..8910, 8911..8955, 8956..9000, 9001..9045, 9046..9090, 9091..9135, 9136..9180, 9181..9225, 9226..9270, 9271..9315, 9316..9360, 9361..9405, 9406..9450, 9451..9495, 9496..9540, 9541..9585, 9586..9630, 9631..9675, 9676..9720, 9721..9765, 9766..9810, 9811..9855, 9856..9900, 9901..9945, 9946..9990, 9991..10035, 10036..10080, 10081..10125, 10126..10170, 10171..10215, 10216..10260, 10261..10305, 10306..10350, 10351..10395, 10396..10440, 10441..10485, 10486..10530, 10531..10575, 10576..10620, 10621..10665, 10666..10710, 10711..10755, 10756..10800, 10801..10845