Questions on Algebra: Equations answered by real tutors!

Tutors Answer Your Questions about Equations (FREE)

Question 47788: what is the equation of the horizontal line through (2,-3)
Click here to see answer by checkley71(8403)

Question 47788: what is the equation of the horizontal line through (2,-3)
Click here to see answer by josmiceli(9674)

Question 47787: what is the equation of the vertical line (-3,5)
Click here to see answer by checkley71(8403)

Question 47787: what is the equation of the vertical line (-3,5)
Click here to see answer by josmiceli(9674)

Question 47778: Solve the equation In(x=5-In(3)=In(x-3).
I have come up with four possilbe choices: 2.5, 4.5, 5, or 7
Click here to see answer by stanbon(57337)

Question 47875: Solve the equation. Thanks

Click here to see answer by Nate(3500)

Question 47874: Please help me solve the equation.

Click here to see answer by Nate(3500)

Question 47253: Please help.
Use the formula for compound interest. Solve for t when A=$10,800, P=$3600, and r=5%, and m=4
Click here to see answer by Nate(3500)

Question 47846: Solve the equation.

Click here to see answer by smath(6)

Question 47845: Solve the equation.

Click here to see answer by smath(6)

Question 47926: 3x-4y=12
Click here to see answer by ankita_vashishtha@yahoo.co.in(2)

Question 47972: Solve the equation.

Click here to see answer by checkley71(8403)

Question 48014: What is the common error in the first step of solving the following problem.

Equation: 6x - (x + 3) = 5 + 2x
First step: 6x - x + 3 = 5 + 2x

Click here to see answer by ChillyWiz282(3)

Question 48019: Write an equation form (Ax+By=c) of the line through (2,3) perpendicular to -3x+2y=8
Click here to see answer by Nate(3500)

Question 47999: Solve the equation 4^2x+1=2^3x+6.
Possible solutions are:
a. -5
b. 2
c. 4
d. 5
Click here to see answer by Nate(3500)

Question 48004: Solve the equation.

Click here to see answer by longjonsilver(2297)

Question 48071: Solve the equation.

Click here to see answer by stanbon(57337)

Question 48085: Find the exact solution to the equation 3^x+5=9^x.
My choices for answers are:
a. 5/3
b. 5/2
c. 5
d. 6
Click here to see answer by Nate(3500)

Question 48112: f(x)= 3x(2x-1). f(-1)=
Click here to see answer by tutorcecilia(2152)

Question 48149: Solve the equation for the indicated variable. (Leave ± in your answer, when appropriate.)
for t
Click here to see answer by Earlsdon(6287)

Question 48145: Solve the equation for the indicated variable. (Leave ± in your answer, when appropriate.)

Click here to see answer by Earlsdon(6287)

Question 48214: Use the square root property to solve the equation.

Click here to see answer by Earlsdon(6287)

Question 48242: write in simplest form
-15x^3y^3/-20xy^4
Click here to see answer by stanbon(57337)

Question 48211: Find the imaginary solutions of the equation.

Click here to see answer by stanbon(57337)

Question 48250: add or subtract as indicated, express your results in simplest form
5a-12/a^2-8a+15 - 3a-2/a^2-8a+15
Click here to see answer by tutorcecilia(2152)

Question 48249: add or subtract as indicated,express your results in simplest form
x^2/x-3 - 9/x-3
Click here to see answer by tutorcecilia(2152)

Question 48248: add or subtract as indicated, express your results in simplest form
5/4cd + 11/4cd
Click here to see answer by checkley71(8403)

Question 48289: Find the imaginary solutions of the equation.

Click here to see answer by venugopalramana(3286)

Question 48288: Use the discriminant to determine if the equation can be solved by factoring. If the equation can be solved by factoring, then factor it.

Click here to see answer by venugopalramana(3286)

Question 48340: Rewrite the middle term as the sum of two terms and then factor completely

15x^2 + 17x + 4

Thank You!
Click here to see answer by Nate(3500)

Question 48287: Find the value of k so that the equation will have exactly on rational solution.

Click here to see answer by stanbon(57337)

Question 48286: Solve the equation by completing the square.

Click here to see answer by Nate(3500)

Question 48420: Can someone show me how to solve the following equation for "x"? thanks.

Click here to see answer by Nate(3500)

Question 48421: Can someone help me with this i've tried and i am not ending up with the right solutions.
"Show that each equation is TRUE by SIMPLIFYING the following:"
a.)
b.)
c.)
d.)
Please help i dont understand how to show that the equation is true by simplifying, i've tried but nothing i've done has came out right.
Click here to see answer by tutorcecilia(2152)

Question 48448: Use the discriminant to determine if the equation can be solved by factoring. If the equation can be solved by factoring, then factor it.

Click here to see answer by Nate(3500)

Question 48446: Find the imaginary solutions of the equation.

Click here to see answer by Nate(3500)

Question 48444: Solve the equation by completing the square.

Click here to see answer by Nate(3500)

Question 48519: I need help with this. I don't know where to begin.
Factor: -1x^2+6xy+9y^2
Click here to see answer by checkley71(8403)

Question 48519: I need help with this. I don't know where to begin.
Factor: -1x^2+6xy+9y^2
Click here to see answer by cowess(34)

Question 48498: Solve
4(x + 2)- 3x = x - 6
Thank You!
Click here to see answer by checkley71(8403)

Question 48532: I need help!!! I cannot solve the following questions and my summer school teacher is not helpful (I cant understand a word he says).
1. Simplify 2xsquared+3x-(4xsquared-6x)+(9-2x)
2. solve 5y+2=2(y-6)

Click here to see answer by checkley71(8403)

Question 48548: Number of Worker Number of Radios Built
1 13
2 26
3 39
4 52
Define variables and write an equation to model the relationship in each table
Click here to see answer by Nate(3500)

Question 48562: Use the square root property to solve the equation.

Click here to see answer by algebrapro18(206)

Question 48560: Please solve the equation.

Click here to see answer by algebrapro18(206)

Question 48557: Solve the equation for the indicated variable. (Leave ± in your answer, when appropriate.)
for t
Click here to see answer by algebrapro18(206)

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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, 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