Questions on Algebra: Equations answered by real tutors!

Tutors Answer Your Questions about Equations (FREE)

Question 331534: x3+7x2-21x-27=0
Click here to see answer by Jk22(389)

Question 331578: Geoff has a square bedroom. He measures one of the walls and finds it is 20 ft long. How many square feet are in his bedroom?
Click here to see answer by JBarnum(2044)

Question 331632: i need help with solving for x with this problem below....
May you show full work?
- 3x - 6 = - 6
Click here to see answer by rfer(12678)

Question 331626: the rational root of the equation 2x3-x2-4x+2=0 is
Click here to see answer by solver91311(16897)

Question 331701: what is the answer to this equation 1/2x-5/3=-1/2x+19/4?
Click here to see answer by rfer(12678)

Question 331691: How do I find the equation m = 8/9, (6,-3)
Click here to see answer by rfer(12678)

Question 331715: Hi there, I am stumped at how to do about this. Can someone please help me? Thank you!
A woman with a basket of eggs finds that if she removes
the eggs from the basket 3 or 5 at a time, there is always 1
egg left. However, if she removes the eggs 7 at a time,
there are no eggs left. If the basket holds up to 100 eggs,
how many eggs does she have? Explain your reasoning.
Click here to see answer by Edwin McCravy(8924)

Question 331697: Hi; Can you show me how to work the following problem please?
The table used for table tennis is 4 ft longer that it is wide and has an area of 45 ft^2. What are the dimensions of the table?

Click here to see answer by nerdybill(6963)

Question 331718: Can someone please help with this question? Thanks in advance!
Three motorcyclists ride around a circular race course
starting at the same place and the same time. The first
passes the starting point every 12 min, the second every
18 min, and the third every 16 min. After how many
minutes will all three pass the starting point again at the
same time? Explain your reasoning
Click here to see answer by galactus(183)

Question 331775: Factorize
x^3-12x=x^2
Click here to see answer by Earlsdon(6291)

Question 331705: please answer this: the width of a rectangular window frame is 12 inches less than its length. if you add 30 inches to both the length and the width, you double the perimeter. find the length and the width of the original rectangle?
Click here to see answer by ankor@dixie-net.com(15667)

Question 331792: how many different sandwiches consisting of one type of cheese, one condiment and one bread choice can be prepare for five types of cheese, two condiment, and three bread choices

Click here to see answer by jrfrunner(365)

Question 331719: Can someone please help me with this problem? Thank you!
Determine how many complete revolutions each gear in
the following must make before the arrows are lined up
again:
Gear 1 = 40 teeth
Gear 2 = 24 teeth
Gear 3 = 60 teeth

Click here to see answer by ankor@dixie-net.com(15667)

Question 331825: the three roots of x3+2x2-x-2=0
Click here to see answer by nerdybill(6963)

Question 331829: 260 is 40% of what number
Click here to see answer by nerdybill(6963)

Question 331821: the roots of x3+x2-20x=0
Click here to see answer by jrfrunner(365)

Question 331878: Factor completely. if a polynomial is prime, state this.
12a^2+84ab+147b^2
Click here to see answer by mananth(12270)

Question 331893: I am having trouble solving the following problem can you help me? One person mows a yard in 6 hours and another mows the same yard in four hours how long would it take for them to mow the yard together?
Click here to see answer by nerdybill(6963)

Question 331897: I forgot how to convert to decimal notation can you help me convert this 8.05*10^7
Click here to see answer by nerdybill(6963)

Question 331886: Solve each equation using quadratic formula.
x^2-3x+2=0
y^2+y=6
Click here to see answer by mananth(12270)

Question 331879: Simplify products. Give exact answers.
2 sq rt 5 multiplied by 3 sq rt 10
Click here to see answer by mananth(12270)

Question 331880: Simplify products.
2 sq rt 5 + sq rt 2 multiplied by 3 sq rt 5 - sq rt 2
Click here to see answer by mananth(12270)

Question 331883: Simplify.
sq rt 6/2 multiplied by 1/sq rt 3
Click here to see answer by mananth(12270)

Question 331966: I am having trouble solving this equation. I am supposed to divide and simplify and can not get the answer to 11v-22/49/v-2/14v can you help. I keep coming up with different answers.
Click here to see answer by ankor@dixie-net.com(15667)

Question 331968: I am removing factors of 1 in this equation 7m^2+7m/14m^2+49m this is the answer I came up with m+1/2m+7
Click here to see answer by Alan3354(30993)

Question 332014: i need to solve for x in these equations.Verify th esolution.
1. 28+x=7-2x
2. 2x=25+3x
3. 5(x-3)+2(3-x)=12
4. 18-(x+3)-2x=4+(x-5)
Click here to see answer by unlockmath(1606)

Question 332026: 3-6t=5t-19
Click here to see answer by jim_thompson5910(28598)

Question 332007: if sum of the roots of the equation kx2+2x-3k=o is equal to their product then value of k is
thank you in advance
Click here to see answer by galactus(183)

Question 331686: 2x^4-5x^2-12=0
Click here to see answer by scott8148(6628)

Question 332116: Solve using the principles of zero products

I could really use some help with this one please. very confused
thank you
Click here to see answer by user_dude2008(1861)

Question 332121: All variables represent positive numbers. Simplify the sums and differences. Give exact answers.
Sq rt 3 – 2 sq rt 3

Click here to see answer by Alan3354(30993)

Question 332124: Find all real solutions to each question.
X^2-20=0

Click here to see answer by checkley77(12569)

Question 332122: Write each radical expression in simplified radical form.
Sq rt 3/sq rt 12

Click here to see answer by checkley77(12569)

Question 332123: Simplify each expression. Write answers in positive exponents. Assume all variables represent positive real numbers.
(3*a^-2/3)^-3

Click here to see answer by mananth(12270)

Question 332276: Hi, I really appreciate you taking your time to help!
I have a question that states
"Solve the rational inequality"
I'm not even sure if it is an equality, I have looked everywhere in the textbook and cannot seem to find anything close to it. The problem is
3x-1/x-8 -4
that is....3x-1 divided by x-8 then -4.
If this is indeed a rational inequality, please explain how I get the answer so that I will know next time. Thankyou so much.
Click here to see answer by jim_thompson5910(28598)

Question 332221: please show the check for the following equation

Click here to see answer by edjones(7569)

Question 332258: what is the sum of a number and 6?
what is twice a number and 6?
what is twice the sum of a number and 6?
what is the product of x and y?
what is twice the product of x and y?
what is the square of the product of x and y?
what is the product of x and y-squared?
what is twice the difference of a and b?
what is the difference of a and b-squared?
what is 3 less than 5 time the difference of a and b?
Click here to see answer by edjones(7569)

Question 332302: v-4(4-v)=-2(2v-1)
Click here to see answer by jim_thompson5910(28598)

Question 332312: 3(x-0.87)-2x=4.98
Click here to see answer by rfer(12678)

Question 332331: what is the y coordinate of the vertex of a parabola wit the following equation?
y=x^2-6x+14
Click here to see answer by nerdybill(6963)

Question 332331: what is the y coordinate of the vertex of a parabola wit the following equation?
y=x^2-6x+14
Click here to see answer by solver91311(16897)

Question 332333: I am having problems with simultaneous equations...and this one really has stumped me can you please help.
3c-2d=13
2c-3d=0
Click here to see answer by solver91311(16897)

Question 332361: Find two arithmetic means between -17 and -71.
Click here to see answer by Alan3354(30993)

Question 332363: If an object is in free fall, the sequence 16, 48, 80, ... represents the distance in feet that the object falls during the first second, during the second second, during the third second, and so on. How far will the object fall during the first 6 seconds?
Click here to see answer by Alan3354(30993)

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, 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, 17551..17595, 17596..17640, 17641..17685, 17686..17730, 17731..17775, 17776..17820, 17821..17865, 17866..17910, 17911..17955, 17956..18000, 18001..18045, 18046..18090, 18091..18135, 18136..18180, 18181..18225, 18226..18270, 18271..18315, 18316..18360, 18361..18405, 18406..18450, 18451..18495, 18496..18540, 18541..18585, 18586..18630, 18631..18675, 18676..18720, 18721..18765, 18766..18810, 18811..18855, 18856..18900, 18901..18945, 18946..18990, 18991..19035, 19036..19080, 19081..19125, 19126..19170, 19171..19215, 19216..19260, 19261..19305, 19306..19350, 19351..19395, 19396..19440, 19441..19485, 19486..19530, 19531..19575, 19576..19620, 19621..19665, 19666..19710, 19711..19755, 19756..19800, 19801..19845, 19846..19890, 19891..19935, 19936..19980, 19981..20025, 20026..20070, 20071..20115, 20116..20160, 20161..20205, 20206..20250, 20251..20295, 20296..20340, 20341..20385, 20386..20430, 20431..20475, 20476..20520, 20521..20565, 20566..20610, 20611..20655, 20656..20700, 20701..20745, 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