Questions on Algebra: Equations answered by real tutors!

Tutors Answer Your Questions about Equations (FREE)

Question 366859: 4x-7=13
Click here to see answer by stanbon(57967)

Question 366876: ½(y-2)+2 =3/8(3y-4)

I am so confused with this problem. can you show me how to solve it step by step.
Thank you
Michelle
Click here to see answer by ewatrrr(10682)

Question 366902: The sum of two consecutive odd integers is 112. find the integers.
Click here to see answer by crstricker78(1)

Question 366907: find three consecutive odd integers such that their sum decreased by the second equals 50.
Click here to see answer by ewatrrr(10682)

Question 366953: Rational Function of g(x) = -(x-9)/45
Click here to see answer by Fombitz(13828)

Question 366941: the length of a rectangle is 4 times its width. the perimiter of the rectangle is 32 feet.waht are the rectangles length and width
Click here to see answer by rfer(12730)

Question 366976: please explain how to calculate
v-4(4-v)=-2(2v-1)
thank you
Click here to see answer by jim_thompson5910(28715)

Question 366877: solve for x and show all the steps:
7(x+4)-10=3x+20+4x-2
Then, show all the steps to CHECK YOUR SOLUTION!
You will find something "odd" here that has to do with "infinity".
What is it?
What does it mean when "x" can be an "infinite" number of values?

Click here to see answer by robertb(4012)

Question 366967:
2y + 1/y^2 - y -6
Click here to see answer by Fombitz(13828)

Question 366970: Simplify (6x^5 - 48x^2)/12x^3 + 24x^2 + 48x)
Click here to see answer by mananth(12270)

Question 366947: The Cancer rate (number of deaths per 100,000 people) in the united states can be approximated by the equation y= -2.2x +216, where x is the number of years since 1990.solve this equation for x. Use this new equation to determine in which year the approximate cancer death rate will be 150
Click here to see answer by nyc_function(2733)

Question 367049: I need help with problems such as the one below, which is a practice problem. If I can have someone show me step by step instructions I'm sure I can complete the rest of my math assignment.
-3x+8= -4
Thank you!!!
Click here to see answer by mananth(12270)

Question 367051: Please help!!
Can someone help me solve the math problem below please?
4x+3=3x+6
Thank you!!!!
Click here to see answer by mananth(12270)

Question 367052: I really appreciate the help and have attempted to solve the problem below.
Did I do this correctly?
Please help...
-2(4x+1)=24
my answrer: -13/16
Any Suggestions?
Click here to see answer by mananth(12270)

Question 367038: Can someone please help me solve this problem
Evaluate -(5z2) and -5z2 when z=8
Click here to see answer by robertb(4012)

Question 367068: 12x+7=9x+25
what is x? How do you figure it out
Click here to see answer by Theo(3504)

Question 367153: Hello, I have to use 'completing the square' to put this equation into standard form, find the vertex, x- and y-intercepts.

I completed the square like this:

+/-
From here, I'm not sure how to put in standard form, but I know that once I have it in standard form, the vertex is (h,k).
Didn't I also find the x-intercept when I made the equation equal to zero to complete the square?
I plugged 0 in for x and solved for y to get y-intercept = 9.
If you could please show me how to finish completing the square to put in standard form, and also how I find the x-intercept I would greatly appreciate it! Thanks so much for your valuable time :)
Click here to see answer by ewatrrr(10682)

Question 367111: Can you help me solve this problem please?
8x + 2 = 8 – 3x - 15
Click here to see answer by Jk22(389)

Question 367163: If Kevin can do a job in five hours and Carrie can do the same job in 4 hours how long will it take for them to do the job together? Could you please explain your answer as well
Click here to see answer by Earlsdon(6294)

Question 367166: Hi there, I have to find the quadratic equation that has vertex (-1, -3) and y-intercept (0, 1).
I plugged the vertex into the vertex form and got

Then I plugged in the given y-intercept and solved for a

So my vertex form will be . Converting this to general form...

Did I do this correctly? I've never seen a problem like this and couldn't find an example in the book. Thanks for your time and have a good day :)
Click here to see answer by ewatrrr(10682)

Question 367279: 2x+x=36
Click here to see answer by jim_thompson5910(28715)

Question 367281: The sum of twice a number and 4 less than the number is the same as the diffrence between -32 and the number. What is the number?
Click here to see answer by ewatrrr(10682)

Question 367252: Find the y-intercept.
-2x - y = -10 (Points : 1)
(10, 0)
(5, 0)
(0, 5)
(0, 10)
Click here to see answer by rfer(12730)

Question 367314: Good evening, I'm having trouble finding the x-intercept of the following equation:

I already managed to complete the square to get the vertex form:

The y-intercept is 9, obtained by plugging 0 in for x and solving for y.
The vertex is (4, -23), but I don't understand how to find the x-intercept. I graphed the equation and the x-intercepts are somewhere around (-7.5, 0) and (-0.6, 0) but I have no idea how to calculate these. Please help! Your time is much, MUCH appreciated :)
Click here to see answer by jim_thompson5910(28715)

Question 367321: Hi, I'm new to synthetic division and want to make sure I'm doing this right:
/
-2_|____1____-6____-3____1
___|_________-2____16___-26
________1____-8____13___-25
, remainder =
Fingers are crossed that I understand this correctly :) Thanks so much for your time and have a great night!

Click here to see answer by jim_thompson5910(28715)

Question 349299: 2h-12=5h
Click here to see answer by algebrastudent611(8)

Question 365792: 7x +2y =5
Click here to see answer by algebrastudent611(8)

Question 367374: Find ALL possible rational zeros, do not solve:

Constant:
Factors: ,
Leading Coefficient:
Factors: ,
, , ,
Is that all I have to do for the rational zero test?
Thanks in advance for your time!
Click here to see answer by jim_thompson5910(28715)

Question 367286: A bag of marbles has twice as many blue marbles as green marbles, and the bag has at least 36 marbles in it. At least how many green marbles does it have?
Click here to see answer by robertb(4012)

Question 367357: Hi there, I have to find the quadratic equation that has vertex (-1, -3) and y-intercept (0, -1).
I plugged the vertex into the vertex form and got

Then I plugged in the given y-intercept and solved for a

So my vertex form will be . Converting this to general form...

Did I do this correctly? I've never seen a problem like this and couldn't find an example in the book. Thanks for your time and have a good evening :)
Click here to see answer by jim_thompson5910(28715)

Question 367388: 3/4a +16=2-1/8a
Click here to see answer by rfer(12730)

Question 367409: i have an equation of
-x-2y=2
and i have to convert each equation into a slope intercept and i have the answer but i just dont know how to get it.
can anyone help me? and show me the steps of how to do it??
Click here to see answer by rfer(12730)

Question 367415: Hi, I have to write – as a product of linear factors.
Since , I determined that
Then I was able to factor some more below, but I believe I should be taking the square root of the equation at some point, just not sure where.

Thanks for any help you can provide!
Click here to see answer by Fombitz(13828)

Question 367487: y=3x+7
3x+2y=-4
solve graphically then classify the system as consisten or inconsistent and the equations as dependent or independent
Click here to see answer by stanbon(57967)

Question 367499: saline (saltwater)solutions are often used for sore throats. a nurse has a saline solution that is 34% salt and the rest water. she also has a 61% saline solution. she wants to use a 50% solution with a particulas patient without wastin the existin solutions. hwo manyu milliliters (mL)of each solution would be needed in order to obtain 120mL of a mixture that is 50% salt?
Click here to see answer by robertb(4012)

Question 367591: Find the discriminant of this equation and tell if the quadratic equation has 2 real solutions, one real solution, or two imaginary solutions:
9x^2 - 64 = 0
Click here to see answer by robertb(4012)

Question 367588: Solve this quadratic inequality and show answer in interval notation:
4x^2 - 12x + 9 > 0
Click here to see answer by robertb(4012)

Question 367607: Find the slope, if it exists of the line containing the pair of points
(-14, -11) (-19, -13)

Click here to see answer by mananth(12270)

Question 367606: Find the slope if it exists
x+8y=16
need to know how to solve this problem and how to either write it out in integer or simplified fraction
Click here to see answer by mananth(12270)

Question 367605: Find teh intercepts and then use them to graph teh equation
5y-15=5x
Click here to see answer by mananth(12270)

Question 367590: A polynomial P(x) and a divisor d(x) are given. Use long division to find the
quotient Q(x) and the remainder R(x) when P(x) is divided by d(x), and
express P(x) in the form d(x)∙ Q(x) + R(x).
P(x) = x4 + 3x2 + 18 d(x) = x2 – 3

Click here to see answer by Jk22(389)

Question 367582: (x+2)(x-3)=44
Click here to see answer by Jk22(389)

Question 367593: Solve by factoring
4x^2 - 3x -6 = 0
Click here to see answer by robertb(4012)

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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, 16516..16560, 16561..16605, 16606..16650, 16651..16695, 16696..16740, 16741..16785, 16786..16830, 16831..16875, 16876..16920, 16921..16965, 16966..17010, 17011..17055, 17056..17100, 17101..17145, 17146..17190, 17191..17235, 17236..17280, 17281..17325, 17326..17370, 17371..17415, 17416..17460, 17461..17505, 17506..17550, 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20746..20790, 20791..20835, 20836..20880, 20881..20925, 20926..20970, 20971..21015, 21016..21060, 21061..21105, 21106..21150, 21151..21195, 21196..21240, 21241..21285, 21286..21330, 21331..21375, 21376..21420, 21421..21465, 21466..21510, 21511..21555, 21556..21600, 21601..21645, 21646..21690, 21691..21735, 21736..21780, 21781..21825, 21826..21870, 21871..21915, 21916..21960, 21961..22005, 22006..22050, 22051..22095, 22096..22140, 22141..22185, 22186..22230, 22231..22275, 22276..22320, 22321..22365, 22366..22410, 22411..22455, 22456..22500, 22501..22545, 22546..22590, 22591..22635, 22636..22680, 22681..22725, 22726..22770, 22771..22815, 22816..22860, 22861..22905, 22906..22950, 22951..22995, 22996..23040, 23041..23085, 23086..23130, 23131..23175, 23176..23220, 23221..23265, 23266..23310, 23311..23355, 23356..23400, 23401..23445, 23446..23490, 23491..23535, 23536..23580, 23581..23625, 23626..23670, 23671..23715, 23716..23760, 23761..23805, 23806..23850, 23851..23895, 23896..23940, 23941..23985, 23986..24030, 24031..24075, 24076..24120, 24121..24165, 24166..24210, 24211..24255, 24256..24300, 24301..24345, 24346..24390, 24391..24435, 24436..24480, 24481..24525, 24526..24570, 24571..24615, 24616..24660, 24661..24705, 24706..24750, 24751..24795, 24796..24840, 24841..24885, 24886..24930, 24931..24975, 24976..25020, 25021..25065, 25066..25110, 25111..25155, 25156..25200, 25201..25245, 25246..25290, 25291..25335, 25336..25380, 25381..25425, 25426..25470, 25471..25515, 25516..25560, 25561..25605, 25606..25650, 25651..25695, 25696..25740, 25741..25785, 25786..25830, 25831..25875, 25876..25920, 25921..25965