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

Tutors Answer Your Questions about Linear-systems (FREE)

Question 401592: Solve and check the following systems by substitution.
(7x � 2y = 1)
(4x + 5y = 2)
Click here to see answer by mananth(16946)

Question 401954: the width of a rectangle is 4 feet less then the lenght. the area is 5ft sqaured whats the legth and width ?
Click here to see answer by richard1234(7193)

Question 402088: can you show the following equations step by step and provide an answer (solving systems of equations by graphing) :
Click here to see answer by mananth(16946)

Question 402109: 3(5x+2)-2(4x+3)
Click here to see answer by rfer(16322)

Question 402292: X-2y=6
y=2X-18
Solve the system by the substitution method.
Please help me solve.
Thanks, angela
Click here to see answer by sofiyac(983)

Question 402292: X-2y=6
y=2X-18
Solve the system by the substitution method.
Please help me solve.
Thanks, angela
Click here to see answer by Mr.Math(29)

Question 402244: I need to graph the equation using the slope and y-intercept
y=10/3x+4
Click here to see answer by rfer(16322)

Question 402243: I need to find the domain of the function
g(x)= __4__
9-7x
Click here to see answer by solver91311(24713)

Question 402387: How would you graph a linear equation when the slope, Y- intercept, and x- value are all given but the y- value is not?

Click here to see answer by rfer(16322)

Question 402440: I need to graph the following equation and indentify the y-intercept
y+x=-7
Thank you
Click here to see answer by rfer(16322)

Question 402458: How do I solve: 3p-2=-q
-q+2p=3 ?
Click here to see answer by MathLover1(20850)

Question 402594: did you hear about the mathematician who wanted to make a fruit salad, so he brought some apples and oranges _ _ _ _ _ _ _ _ _?
Click here to see answer by mananth(16946)

Question 402594: did you hear about the mathematician who wanted to make a fruit salad, so he brought some apples and oranges _ _ _ _ _ _ _ _ _?
Click here to see answer by robertb(5830)

Question 402594: did you hear about the mathematician who wanted to make a fruit salad, so he brought some apples and oranges _ _ _ _ _ _ _ _ _?
Click here to see answer by richard1234(7193)

Question 402025: x-y=1
x+y=3
Click here to see answer by sofiyac(983)

Question 402805: May you help me with this problem:
9m-3n=20
3m+6n=2
The instructions are to use linear combinations to solve the linear system. Then check your solution. Thank you for time.
Click here to see answer by stanbon(75887)

Question 402808: May you help me with this problem:
3b+2c=46
5c+b=11
The instructions are to use linear combinations to solve the linear system. Then check your solution. Thank you for time.
Click here to see answer by stanbon(75887)

Question 402819: May you help me with this problem:
6x+2y=5
8x+2y=3
The instructions are to use linear combinations to solve the linear system.
Then check your solution. Thank you for time.
Click here to see answer by Alan3354(69443)

Question 402821: May you help me with this problem:
3j+5k=19
j-2k=-1
The instructions are to use linear combinations to solve the linear system.
Then check your solution. Thank you for time.
Click here to see answer by Alan3354(69443)

Question 402825: May you help me with this problem:
2p-q=2
2p+3q=22
The instructions are to use linear combinations to solve the linear system.
Then check your solution. Thank you for time.
Click here to see answer by Alan3354(69443)

Question 402823: May you help me with this problem:
3x+7y=6
2x+9y=4
The instructions are to use linear combinations to solve the linear system.
Then check your solution. Thank you for time.
Click here to see answer by Alan3354(69443)

Question 402820: May you help me with this problem:
5y-20=-4x
4y=-20x+16
The instructions are to use linear combinations to solve the linear system.
Then check your solution. Thank you for time.
Click here to see answer by Alan3354(69443)

Question 402816: May you help me with this problem:
5s+8t=70
60=5s-8t
The instructions are to use linear combinations to solve the linear system.
Then check your solution. Thank you for time.
Click here to see answer by Alan3354(69443)

Question 402815: May you help me with this problem:
2v=150-u
2u=150-v
The instructions are to use linear combinations to solve the linear system.
Then check your solution. Thank you for time.
Click here to see answer by Alan3354(69443)

Question 402799: May you please help me with this problem:
5e+4f=9
4e+5f=9
The instructions are to use linear combinations to solve the linear system. Then check your solution. Thank you for your time.

Click here to see answer by Alan3354(69443)

Question 402827: May you help me with this problem:
2q=7-5p
4p-16=q
The instructions are to use linear combinations to solve the linear system.
Then check your solution. Thank you for time.
Click here to see answer by Alan3354(69443)

Question 402828: May you help me with this problem:
g-10h=43
18=-g+5h
The instructions are to use linear combinations to solve the linear system.
Then check your solution. Thank you for time.
Click here to see answer by Alan3354(69443)

Question 402897: What similarities and differences do you see between functions and linear equations. Are all linear equations functions? Is there an instance in which a linear equation is not a function?. Create an equation of a nonlinear function and provide two inputs
Click here to see answer by jim_thompson5910(35256)

Question 402927: I really need a refresher here! Please help :)
a)solve the equation symbolically
b)classify the equation as a contradiction, an identity, or a conditional equation.
7 - 9z = 2(3 - 4z) - z
Click here to see answer by scott8148(6628)

Question 402977: -7x-5y=-3
x-8y=-17
Click here to see answer by jim_thompson5910(35256)

Question 403138: Bob has to mix a solution of .67 herbicide and .46 herbicide to form 42 liters of a .55 solution. How much .67 solution does Bob use?
Click here to see answer by stanbon(75887)

Question 403148: Solve the linear equation with intersection of graphs method. Approximate the solution to the nearest thousandth whenever appropriate.
(6-7)/(7)=(2x-3)/(3)
Click here to see answer by rfer(16322)

Question 403241: a farmer keeps hens and rabbits on his form.one day he counted a total of 70 heads and 196 legs. how many more hens than rabbits does he have?
Click here to see answer by Edwin McCravy(20056)

Question 403278: what is an equation that would be solved by using multiplication. and how would you show it?
Click here to see answer by stanbon(75887)

Question 403279: Sasha solved an equation. Her work is shown below. Explain Sasha's error. Then, show the correct way to solve.

Sasha's work
h/7 = 6
h/7 + 7 = 6 + 7
h = 13
Click here to see answer by josmiceli(19441)

Question 403294: Write an equation that you could solve using these steps:
Add 7 to both sides. Then, divide both sides by 4.
Explain how you know your answer is right.

Click here to see answer by checkley79(3341)

Question 403406: find -y when y=3
Click here to see answer by sofiyac(983)

Question 403456: what are the steps to solving 5x-8=5+12

Click here to see answer by Mr.Math(29)

Question 403465: Determine the x and y intercepts on the graph of the equation. Draw a conclusion about what the constants a and b represent.
x/2 + y/3 = 1
Click here to see answer by Alan3354(69443)

Question 403476: How do you write linear equations in slope intercept form? We have to write an equation of the line with the given slope and y-intercept
problem- m=2;b=-2

Click here to see answer by Alan3354(69443)

Question 403540: Please help me solve this problem.
I need to solve by using the elimination method.
6x+7y=6
x=48-9y
Click here to see answer by MathLover1(20850)

Question 403563: 2(a-4)-3(a-2)=4(a+1)+4
Click here to see answer by rfadrogane(214)

Question 403753: graph the equation 0.3x-2.6y=8.1
Click here to see answer by stanbon(75887)

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, 10846..10890, 10891..10935, 10936..10980, 10981..11025, 11026..11070, 11071..11115, 11116..11160, 11161..11205, 11206..11250, 11251..11295, 11296..11340, 11341..11385, 11386..11430, 11431..11475, 11476..11520, 11521..11565, 11566..11610, 11611..11655, 11656..11700, 11701..11745, 11746..11790, 11791..11835, 11836..11880, 11881..11925, 11926..11970, 11971..12015, 12016..12060, 12061..12105, 12106..12150, 12151..12195, 12196..12240, 12241..12285, 12286..12330, 12331..12375, 12376..12420, 12421..12465, 12466..12510, 12511..12555, 12556..12600, 12601..12645, 12646..12690, 12691..12735, 12736..12780, 12781..12825, 12826..12870, 12871..12915, 12916..12960, 12961..13005, 13006..13050, 13051..13095, 13096..13140, 13141..13185, 13186..13230, 13231..13275, 13276..13320, 13321..13365, 13366..13410, 13411..13455, 13456..13500, 13501..13545, 13546..13590, 13591..13635, 13636..13680, 13681..13725, 13726..13770, 13771..13815, 13816..13860, 13861..13905, 13906..13950, 13951..13995, 13996..14040, 14041..14085, 14086..14130, 14131..14175, 14176..14220, 14221..14265, 14266..14310, 14311..14355, 14356..14400, 14401..14445, 14446..14490, 14491..14535, 14536..14580, 14581..14625, 14626..14670, 14671..14715, 14716..14760, 14761..14805, 14806..14850, 14851..14895, 14896..14940, 14941..14985, 14986..15030, 15031..15075, 15076..15120, 15121..15165, 15166..15210, 15211..15255, 15256..15300, 15301..15345, 15346..15390, 15391..15435, 15436..15480, 15481..15525, 15526..15570, 15571..15615, 15616..15660, 15661..15705, 15706..15750, 15751..15795, 15796..15840, 15841..15885, 15886..15930, 15931..15975, 15976..16020, 16021..16065, 16066..16110, 16111..16155, 16156..16200, 16201..16245, 16246..16290, 16291..16335, 16336..16380, 16381..16425, 16426..16470, 16471..16515