Questions on Algebra: Equations answered by real tutors!

Tutors Answer Your Questions about Equations (FREE)

Question 552739: 8f+11=-7f-19
Click here to see answer by jim_thompson5910(35256)

Question 552810: How do I set up this problem?
Mr. Fox invested a sum of money at 6%. He invested a second sum, $2000.00 less than this sum, at 5%. He invested third sum, which was $3000.00 less than the first sum, at 3%. His total annual income was $370.00. Find the amount he invested t each rate.
Click here to see answer by mananth(16946)

Question 552838: Factor Completely
81s^2+16-72s
Click here to see answer by jim_thompson5910(35256)

Question 552834: Help four problems solving equations with variables on each side with fractions. Thank you
4/5y - 8 = 2/5y +16
x/0.4=2x +1.2
3/4k + 16 = 2 - 1/8k
1/3b + 8 = 1/2b -4

Click here to see answer by stanbon(75887)

Question 552853: 4d-5=-d
Click here to see answer by jim_thompson5910(35256)

Question 552868: 13x-9=61
Click here to see answer by jim_thompson5910(35256)

Question 552962: (-3) * (-5) * (-2)
Click here to see answer by nicy12(9)

Question 553005: how to write in equation form:
the difference between 11 times a number and 5
Click here to see answer by Alan3354(69443)

Question 553023: combine and simplify:
6/x + 7/x^2
the correct answer is x^2(6x+7), but I can't figure out how to get it.
Click here to see answer by Earlsdon(6294)

Question 552919: How do you solve 7a-8+8-19=4a+19?
Click here to see answer by jim_thompson5910(35256)

Question 553022: combine and simplify:
3x/(x+2) + x/(x-2) - 4x/(x^2-4)
the answer is 4x/(x+2), but I can't figure out how to get it.
Click here to see answer by TutorDelphia(193)

Question 553059: how do you slove this problem ?
2x^2-x=12-x
Click here to see answer by jim_thompson5910(35256)

Question 553107: Hi can you please help me solve; I added all three number then divide, what do I do after that?

Jacqui has gradess of 88 and 77 on her first two algebra tests. If she wants an average of at least 71, what possible scores can she make on her third test?
Thank you...
Click here to see answer by nerdybill(7384)

Question 553123: how do you solve this equation?
4x^2-6=10x
Click here to see answer by jim_thompson5910(35256)

Question 553131: solve the equation 4x^2-6=10x, using FOIL.
Click here to see answer by jim_thompson5910(35256)

Question 553130: 6(2^x)-48=0 and please show me how you got your answer.! Thanks
Click here to see answer by jim_thompson5910(35256)

Question 553130: 6(2^x)-48=0 and please show me how you got your answer.! Thanks
Click here to see answer by solver91311(24713)

Question 553156: I'm confused on how to solve this problem.I've tried before,and my answer came out completely wrong.Can you show me how to solve it?Here it is: 2q+3r=m,for r
Click here to see answer by jim_thompson5910(35256)

Question 553249: -3-5m=-48
Click here to see answer by Alan3354(69443)

Question 553264: im helping my daughter with homework and were on a prob. 3n =426 someone please HELP

Click here to see answer by jim_thompson5910(35256)

Question 553138: (3x+9)-(5x-8)=0 and show me how you got your answer thanks!
Click here to see answer by jim_thompson5910(35256)

Question 553290: what is the answer to this equation 2x+11=x+17
Click here to see answer by jim_thompson5910(35256)

Question 553290: what is the answer to this equation 2x+11=x+17
Click here to see answer by mananth(16946)

Question 553288: what is the answer to this equation 3+4n=2n+19
Click here to see answer by jim_thompson5910(35256)

Question 553293: what is the answer to this equation 4+3t=31+1+t
Click here to see answer by jim_thompson5910(35256)

Question 553293: what is the answer to this equation 4+3t=31+1+t
Click here to see answer by mananth(16946)

Question 553335: Help please, what is.
6x - 4x = 57 + 87
Click here to see answer by prateekagrawal(56)

Question 553335: Help please, what is.
6x - 4x = 57 + 87
Click here to see answer by MathTherapy(10552)

Question 553338: what is the name of the equation "a^2-4xy" ?
mollyannedavis69@yahoo.com
Click here to see answer by stanbon(75887)

Question 553338: what is the name of the equation "a^2-4xy" ?
mollyannedavis69@yahoo.com
Click here to see answer by prateekagrawal(56)

Question 553341: Help please, what is.
6x - 4x + 57 = 87
Click here to see answer by stanbon(75887)

Question 553431: What are the steps to solving an equation with variables on both sides?
Click here to see answer by mananth(16946)

Question 553439: I need help solving this equation, we have been working on factoring and I can't seem to find a solution for this equation, please help! Thanks!

Solve: 6/(y-2)+7/(y-8)=(y-1)/(y-8)
Click here to see answer by Theo(13342)

Question 553477: -2xy + 2y^2/(x^2 - y^2) + 1/1
tha answer is (x-y)/(x+y)
Click here to see answer by mananth(16946)

Question 553559: Solve the following equation by using FOIL:
x^2-2x-35=0
Click here to see answer by nerdybill(7384)

Question 553560: Solve the following equation by using FOIL:
x^2-6x-17=0
Click here to see answer by stanbon(75887)

Question 553560: Solve the following equation by using FOIL:
x^2-6x-17=0
Click here to see answer by rapaljer(4671)

Question 553569: Solve the following equation by using FOIL:
x^2-6x-17=0

Click here to see answer by rapaljer(4671)

Question 553517: A sample of phosphorus-32 has a half-life of 14.28 days. If 55 g of this radioisotope remain unchanged after approximately 57 days, what was the mass of the original sample? could someone please help?
Click here to see answer by ankor@dixie-net.com(22740)

Question 553568: Solve the following equation by using FOIL:
x^2-2x-35=0

Click here to see answer by rapaljer(4671)

Question 553568: Solve the following equation by using FOIL:
x^2-2x-35=0

Click here to see answer by stanbon(75887)

Question 553565: 4+7a=9+4a
Click here to see answer by jim_thompson5910(35256)

Question 553570: solve these equations
1.-8(-x+2)=32
2.10(1-4x)-5=85
3.-41=4-3(1+2a)
4.15=-(9+3v)
5.7n-29=6(n-4)
Click here to see answer by jim_thompson5910(35256)

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, 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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, 25966..26010, 26011..26055, 26056..26100, 26101..26145, 26146..26190, 26191..26235, 26236..26280, 26281..26325, 26326..26370, 26371..26415, 26416..26460, 26461..26505, 26506..26550, 26551..26595, 26596..26640, 26641..26685, 26686..26730, 26731..26775, 26776..26820, 26821..26865, 26866..26910, 26911..26955, 26956..27000, 27001..27045, 27046..27090, 27091..27135, 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