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

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Question 827743: If you had to make an equation in slope-intercept form (y=mx+b) when given two coordinates, how would you do so without making a graph?
Click here to see answer by josgarithmetic(39617)

Question 827829: please help me answer this question. its from "solving systems by substitution" they just didn't have this option.
3x+2y=2
y=x-4
Click here to see answer by stanbon(75887)

Question 827837: 3x + 2y = -10
x= 1 - 5y
SUBTRACTION METHOD
Click here to see answer by stanbon(75887)

Question 827954: -5x+3y=51 y=10x-8 x=? y=?
Click here to see answer by TimothyLamb(4379)

Question 828039: 4y-x=5+2y 3x+7y=24 use
Click here to see answer by LinnW(1048)

Question 828101: How do you put systems of equations into slope-intercept form?
Specifically:
-x + y = 3
-x + y = -2

Click here to see answer by Alan3354(69443)

Question 828067: 3x-2y;x=1,y=2
Click here to see answer by Fombitz(32388)

Question 828264: Solve :
y^3 - 9x^2 + 27x - 27 =0
z^3 - 9y^2 + 27y - 27 =0
x^3 - 9z^2 + 27z - 27 =0
Click here to see answer by Edwin McCravy(20056)

Question 828328: A system of equations is shown below.
5x-5y=10
3x-2y=2
Part A: Create an equivalent system of equations by replacing one equation with the sum of that equation and multiple of the other. Show the steps to do this.
Part B: Show that the equivalent system has the same solution as the original system of equations.
Click here to see answer by TimothyLamb(4379)

Question 828557: An object is thrown, and it follows a parabolic path. Its height, in meters, is given by the function f(x)= -x^2+3x+6. Find the maximum height that the object may reach.
Click here to see answer by richwmiller(17219)

Question 828768: Walk me though please 4x = - 3y + 24
Click here to see answer by erica65404(394)

Question 828828: solve for x,y, and z in the system of equations below. Explain your steps!!!???
x+7y+3z=29
3z+x-2y=-7
5y=10-2x
Click here to see answer by TimothyLamb(4379)

Question 828830: A group of students held a car wash to raise money. They charged $9 for each car and $12 for each van or SUV. Two teams worked continuously, one washing cars and the other washing vans and SUVs. The team washing cars required 25% less time per vehicle than the other team. Each team washed vehicles for 4 hours. The two teams together raised a total of $720. How long, on average, did each team take to wash a vehicle?
Click here to see answer by richwmiller(17219)

Question 828904: 4x-5y=6
24x=9y+1
Click here to see answer by TimothyLamb(4379)

Question 828930: Is y-5=2(x-1) an equation of a line through (4,11)? Need help asap! Thank you!
Click here to see answer by rothauserc(4718)

Question 828887: For what value of k is the function g(x)= x^2+5, x<4 and 2x-k, x>4 continuous on all real numbers?
Click here to see answer by Fombitz(32388)

Question 829237: -6x+6y=6 -6x+3y=-12
Click here to see answer by TimothyLamb(4379)

Question 829351: Jennifer, Tommy and Linda went to the candy store. Jennifer bought 4 sticks of gum, 10 suckers, and 10 bags of jelly beans. She spent a total of $39.60. Tommy spent $24.90 on 8 sticks of gum, 2 suckers, and 5 bags of jelly beans. Linda bought 9 sticks of gum, 2 suckers, and 8 bags of jelly beans for 33.20. What was the price of each type of candy?
Sticks of Gum: $
Suckers: $
Bags of Jelly Beans: $
Click here to see answer by TimothyLamb(4379)

Question 829173: The length of a rectangle is 5 cm more than twice the width. The perimeter of the rectangle is 34 cm. find the dimensions of the rectangle.
Click here to see answer by JulietG(1812)

Question 829459: Graph the equation 9x-4y=-36 using any two points
Click here to see answer by stanbon(75887)

Question 829462: Use the substitution method to solve the following system of linear equations:
x + y = 6
x = �y + 2

Click here to see answer by stanbon(75887)

Question 829468: Solve the following system of equations by linear combination:
2d + e = 8
d � e = 4
Click here to see answer by oscargut(2103)

Question 829469: How many solutions are there to the following system of equations?
3x + 7y = �10
15x + 35y = �45
a)0
b)1
c)2
d)infinitely many
Click here to see answer by oscargut(2103)

Question 829473: Solve, using linear combination.
3x + y = 4
2x + y = 5

Click here to see answer by Fombitz(32388)

Question 829514: Write the slope intercept form of the equation through (-1,3) and parallel to the line 3x-5y=6
Click here to see answer by josgarithmetic(39617)

Question 829514: Write the slope intercept form of the equation through (-1,3) and parallel to the line 3x-5y=6
Click here to see answer by Fombitz(32388)

Question 829520: write the slope intercept form equation through (1,-2) and perpendicular to the line 2x-4y=7
Click here to see answer by josgarithmetic(39617)

Question 829542: write the slope intercept form of the equation through (1, -2) and perpendicular to the line 2x-4y=7
Click here to see answer by oscargut(2103)

Question 829706: 6x-5y=-3
-4x+y=-5

Click here to see answer by TimothyLamb(4379)

Question 829706: 6x-5y=-3
-4x+y=-5

Click here to see answer by Alan3354(69443)

Question 829707: 12x+2y=-4
-5x+y=20

Click here to see answer by TimothyLamb(4379)

Question 829792: How do you solve by graphing y<2x+4. and. -3x-2y>=6
Click here to see answer by josgarithmetic(39617)

Question 829561: 3y-x=2
3y+x=16
Solving Systems of Linear Equations Using Algebraic Methods

Click here to see answer by Fombitz(32388)

Question 829940: 3x-8y=16 where x and y are real numbers

Click here to see answer by Fombitz(32388)

Question 829994: 5(3x - (4 - 5y + 6x) + 5y) I would like to know the formula... I was disconnected sorry
Click here to see answer by Alan3354(69443)

Question 830097: How do I solve this?
x= 17-4y
y=x-2
Click here to see answer by Alan3354(69443)

Question 830160: Can you show me the steps for this equation.:
5y-4x=29 6y-5x=35
Click here to see answer by TimothyLamb(4379)

Question 830160: Can you show me the steps for this equation.:
5y-4x=29 6y-5x=35
Click here to see answer by Alan3354(69443)

Question 830574: I need some help with a linear literal equation ~
I'm using brackets to show what is together
b/(x-a) = 2b/(x+a) solve for x
show some good workings out please, and thanks in advance !
Click here to see answer by ankor@dixie-net.com(22740)

Question 830524: If 5 times the smaller of two numbers is subtracted from twice the larger the result is 16. If the larger is increased by 3 times the smaller the result is 63. Please help me find the numbers. I put as my let statements: let k=the smaller number;let L=
the larger number
Click here to see answer by ankor@dixie-net.com(22740)

Question 830851: To find the length and width of a rectangle for which we know the perimeter and the area, but not the side lengths. Find the length and width of a rectangle whose perimeter is 40 feet and whose area is 96 square feet?
Click here to see answer by Alan3354(69443)

Question 830782: the sum of a number divided by 9 and 2 is 4
Click here to see answer by josgarithmetic(39617)

Question 830782: the sum of a number divided by 9 and 2 is 4
Click here to see answer by MathTherapy(10552)

Question 830880: write an equation in slope intercept form for the line that is perpendicular to the given line and that passes through the given point.
y= -3x+4;(6,-2)
Click here to see answer by josgarithmetic(39617)

Question 830885: Both equations are in standard form. What are the intersections of these two equations. 27=-9x-3y ,72=8x+9y
Click here to see answer by josgarithmetic(39617)

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