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

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Question 953000: Hi,
I'am really stuck on this equation and I would love for anyone to help.
I would very much appriciate if you could also explain how to do this.
a & b are part if this equation.
Thank You for your help.
-----------------------------------------------------------------------
y= 2/3x -3 m=_______ b=________
__________________________________________
a) Find y, if x is 5 (5, )
__________________________________________
b) Find x, if x is -10 (-10, )

Click here to see answer by fcabanski(1391) About Me 
Question 953000: Hi,
I'am really stuck on this equation and I would love for anyone to help.
I would very much appriciate if you could also explain how to do this.
a & b are part if this equation.
Thank You for your help.
-----------------------------------------------------------------------
y= 2/3x -3 m=_______ b=________
__________________________________________
a) Find y, if x is 5 (5, )
__________________________________________
b) Find x, if x is -10 (-10, )

Click here to see answer by MathTherapy(10552) About Me 

Question 953343: solve this equation using substitution method
2x=4+y
6x-5y=18

Click here to see answer by Fombitz(32388) About Me 

Question 953344: solve this equation using substitution method
2x=4+y
6x-5y=18

Click here to see answer by Fombitz(32388) About Me 

Question 953436: Factor the expression.
10y^2 - 29y + 10

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Question 953428:
Factor the expression. Remember you can check your work by doing FOIL.

10y^2 - 29y + 10

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Question 953430:
Factor the expression.

11x^2 - 54x - 5

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Question 953433:
Factor the expression.
24y^2 + 41y + 12

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Question 953429: Factor the expression. Remember you can check your work by doing FOIL.

10y^2 - 29y + 10

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Question 953425: Factor the expression.

14y^2 + 15y - 9

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Question 952687: use point slope formal to write an equation of a line given the following information
the line passes through (-5,1) and is perpendicular to y= 1/3x+1
the equation is

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Question 953508: For the following problem I have to make two equations and then solve them by using determinants. This is the problem:
Fran has 108 m of fencing to enclose her house on all four sides in the shape of a rectangle. If the width is to be one-half the length, what should be the dimensions of the rectangle in meters and feet?
I think the first equation is 2L+2W=108. I'm just having trouble making the second equation.

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Question 953636: Solve the system by substitution:
x= -5/9y-10/9
y=2/3x+31/3

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Question 953806: MINIMIZE USING SIMPLEX METHOD
Z=600X1+ 400X2
1500X1+ 1500X2 >20,000
3000X1+ 1000X2 >40,000
2000X1+ 5000X2 >44,000
X1, X2 >0
NB: the > sign is greater or equal to.....

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Question 954055: Which statement best explains why y=4−6x is a function?

It is a linear equation.

The slope is a factor of the y-intercept.

Each x value has one and only one y value.

The solutions to the equation can be written as ordered pairs.

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Question 954210: What linear graphs can be made from this equation?
y = 4x + 16

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Question 954216: r - s + 2t = -1
2r + 2s - t = 0
r + s = 5
2r + 2t = 4

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Question 954219: The sum of three positive numbers is 90 and the sum of them is the third. Find the numbers if the smallest one is half of the largest.
I have found 2 of the equations. I just need help trying to find the third one
1. x + y + z = 90
2. x + y = z
3. ????

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Question 954219: The sum of three positive numbers is 90 and the sum of them is the third. Find the numbers if the smallest one is half of the largest.
I have found 2 of the equations. I just need help trying to find the third one
1. x + y + z = 90
2. x + y = z
3. ????

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Question 954239: Determine the intercepts of the graph described by the following linear equation.
\qquad y=11x+6y=11x+6

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Question 954203: t + 3u + v = 0
2t - 4u - v = 3
3t + u + 2v = 1
u + v = -1

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Question 954449: Find the slope of the line that passes through points A and D. A = (-3,-2), D = (4,0)
A)-7%2F2
B)-2%2F7
C)0
D)2%2F7

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Question 954487: Determine the value of k for which the system of linear equations
2x + 5y = 10
x + ky = 5
has infinitely many solutions.
k =

Find all solutions corresponding to this value of k. (Express x and y in terms of the parameter

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Question 954592: The length of a rectangle is twice its width. The perimeter is 30. Find its dimensions.
Click here to see answer by rfer(16322) About Me 
Question 954592: The length of a rectangle is twice its width. The perimeter is 30. Find its dimensions.
Click here to see answer by EdenWolf(517) About Me 

Question 954535: I need to graph and solve the solution of this problem.
3/4(24-8y)is greater or equal 15y-24

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Question 954315: 2x-y+2=0 x+y-5=0
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Question 954863: what is b: b+2+3b=90

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Question 954906: Is 30y-(12/x)=0 a linear equation?
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Question 954927: Another way to write the following equation 7x + 7y

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Question 954947: 1)You purchase 8 gal of paint and 3 brushes for $152.50. The next day, you purchase 6 gal of paint and 2 brushes for $113.00. How much does each gallon of paint and each brush cost?
2)Shopping at Savers Mart,Lisa buys her children four shirts and three pairs of pants for $85.50. She returns the next day and buys three shirts and five pairs of pants for $115.00. What is the price of each shirt and each pair of pants ?

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Question 955144: 10x+6y=38 and 20x+4y=52 please solve and provide work

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Question 955206: Ho do you solve x+y=3, x=2y by substitution
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Question 955209: How to solve x+y=4, -2x+3y=7 by substitution
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Question 955207: How do you solve x+y=13, x-y=15 by substitution.
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Question 955262: Hello,
I need to solve this equation by clearing the LCD, and decimal answers are not accepted but fractions are. I worked through it and somehow managed to get a negative number. i know the LCD for 4,5,& 3 is 60.
x+15 over 4
plus
3x over 5
equals
2/3.
Thank you in advance!

Click here to see answer by macston(5194) About Me 

Question 955442: Solve and check the linear equation 12-6x=-54
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Question 955559: solve the following system of equation by the method of your choice.
3x=4y-43
4x-29=-7y

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Question 955710: Find the common solution of each by substitution and graph it.
5x - 6y = -14
2x +5y = 24

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Question 955799: 50y−30z=320-20y+15z=-140
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Question 955907: 2x+y=-2 and 5x+3y=-8 solved by using substitution method
Show work

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Question 955907: 2x+y=-2 and 5x+3y=-8 solved by using substitution method
Show work

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Question 955914: Graph equation 7x-9y=63 in a rectangular coordinate system find x-intercept , y-intercept and slope.
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Question 956122: According to a local survey performed in January, 55% of the people polled said they would reelect the town's mayor. However, the mayor's percentage of votes decreased 2% each month. The survey revealed that 30% of the pople polled would vote for the challenger. The challengers percentage of votes increased 3% each month. In what month will the percentage of pople willing to vote for the challenger equal that of the mayor? What percentage will vote for the challenger in that month?
Click here to see answer by stanbon(75887) About Me 

Question 956110: The sum of two numbers is 16. Three times the larger number decreased by the smaller number is 72. Find the two numbers.
Click here to see answer by macston(5194) 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, 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