Questions on Algebra: Equations answered by real tutors!

Tutors Answer Your Questions about Equations (FREE)

Question 951745: Find the present value of an annuity of P4,750 payable monthly for 2 years & 4 months at 7% compounded monthly. I'm having concerns about the n, I don't exactly know how to solve it. Thank you.
Click here to see answer by MathTherapy(10552)

Question 951611: x+y+z =1
= 35
= 97
Click here to see answer by Alan3354(69443)

Question 951873: How do I work out 3p+4=6

Click here to see answer by Alan3354(69443)

Question 951925: I am having a hard time on a question on my math homework. The question is -7m + 3m = 8 and it says I have to solve the equation and it is really confusing! And we haven't went over this in class, so if I can get help back fast it would be alot! Thank you!
Click here to see answer by josgarithmetic(39617)

Question 951907: Which inverse operation would I use..? The equation is: 2x + 1/2 = 7/2
I tried subtracting 1/2 from both sides but I don't think my answer is right... Or would I divide 2 from2x and 7/2????
Click here to see answer by Alan3354(69443)

Question 951988: 6/x^2+1/x=12
Click here to see answer by stanbon(75887)

Question 952007: Complete the given ordered pairs: x+y=4 (0, ) (3, ) (-2, )

Click here to see answer by macston(5194)

Question 952014: Complete the given ordered pairs: 5x+5y=20 (0, ) ( ,-2) (1, )
Click here to see answer by MathLover1(20849)

Question 952020: Complete the given ordered pairs: y=3x-5 ( ,13) (0, ) (-2, )
Click here to see answer by MathLover1(20849)

Question 952020: Complete the given ordered pairs: y=3x-5 ( ,13) (0, ) (-2, )
Click here to see answer by diazabdulm(7)

Question 952011: Complete the given ordered pairs: 3x+y=5 (0, ) (1, ) ( ,5)
Click here to see answer by MathLover1(20849)

Question 951974: Write the equation
2<3 times a # is 25 =
Click here to see answer by macston(5194)

Question 952131: Factor Completely
3x^6-3y^6
Click here to see answer by MathLover1(20849)

Question 952198: We learned this in class, but I haven't yet grasped the concept. The sheet says "Solve the equation. Identify any double roots." The problem is
x^2+2=11.
I believe you're supposed to equal it to zero. So far, I have:
x^2-9=0
Then, I added zero to the other side.
X^2=9
I managed to get x=3, but I'm not positive that it's right, and I don't know what a "double root" is. Is this a double root? Thank you!
Click here to see answer by Alan3354(69443)

Question 952157: Solve the equation by factoring. (Enter your answers as a comma-separated list.)

2x2 + 11x − 21 = 0
Click here to see answer by Alan3354(69443)

Question 952202: Use the Square Root Property to solve the equation. (Enter your answers as a comma-separated list.)

(y + 3)2 − 36 = 0
Click here to see answer by MathLover1(20849)

Question 952209: Solve the equation by factoring. (Enter your answers as a comma-separated list.)

2x2 + 11x − 21 = 0
Click here to see answer by Alan3354(69443)

Question 952208: Complete the square to make a perfect-square trinomial.

x2 − 14x
Click here to see answer by josgarithmetic(39617)

Question 952208: Complete the square to make a perfect-square trinomial.

x2 − 14x
Click here to see answer by Alan3354(69443)

Question 952248: after driving 72km, 3/5 of a trip is completed. How long is the total trip? How many more kilometers must be driven to complete the trip?
Click here to see answer by stanbon(75887)

Question 952225: Center is (3,2); a=3c; foci:(1,2),(5,2)
Click here to see answer by MathLover1(20849)

Question 951904: Simplify 2+5k-6
Click here to see answer by EdenWolf(517)

Question 952486: Please help me solve this equation: a≠2 ; result= double 0
Thank you.
Click here to see answer by MathLover1(20849)

Question 952457: xolile has more moneythan yvonne. if xolile gave yvonne R200, they would have the same amount of money. if yvonne gave R220, xolile would have twice as much as yvonne. let x be the amount of money xolile has and y be the amount of money yvonne has. what is the suitable equations for this??
Click here to see answer by macston(5194)

Question 952456: 2x + y = -9
-2x + 2y = -15
what is the solution??
Click here to see answer by Alan3354(69443)

Question 952538: I saw this equation in another's question and I need help solving for x even though I could figure it out mentally. I'd like to see how it is solved mathematically: 5 -(1/6)x = (-2/3) x. So, eliminating the fractions by multiplying by 6 leaves 30 - x = -4X. I can see that x= 10, but I just can't solve it mathematically. I have tried several times, and I'm afraid my work is rather embarrassing. Thank you.
Click here to see answer by macston(5194)

Question 952566: Write an expression for the difference of 8 and a number. Is the answer 8-n ?
Click here to see answer by MathLover1(20849)

Question 952595: My name is jayda and I need help solving this problem were solving equations with variables on both side 0.2(6x-10)=2.4x and 2x+0.25=0.5(2x-1.5) step by step plz
Click here to see answer by ankor@dixie-net.com(22740)

Question 952537: please help me solve this equation -15=2.5a-5
Click here to see answer by EdenWolf(517)

Question 952648: Hello and thank you for any help provided. The question is
solve 2m^4=128m^2
So far I've got 2m^2=128 but can't figure squares effectively. Confusing to me.
Thank you,
Rachell
Click here to see answer by macston(5194)

Question 952654: -4+h/3 = h+2
Click here to see answer by diazabdulm(7)

Question 952775: 73.8 is what percent of 90?
Click here to see answer by macston(5194)

Question 952775: 73.8 is what percent of 90?
Click here to see answer by stanbon(75887)

Question 952786: 28 is 110% of what number?
Click here to see answer by Alan3354(69443)

Question 952786: 28 is 110% of what number?
Click here to see answer by MathLover1(20849)

Question 952696: Answer and show work too:
150=y/4-30
That is y over 4
7= -2(t-4)
7m-13-m=23
-6h+11-4h=9
3/10 x=14
That's 3 over 10

Click here to see answer by macston(5194)

Question 952867: 2x+3y=-9 graphed please
Click here to see answer by Alan3354(69443)

Question 952867: 2x+3y=-9 graphed please
Click here to see answer by macston(5194)

Question 952866: 2x+3y=-9
Click here to see answer by Alan3354(69443)

Question 952901: 0.5m=3.5
Click here to see answer by EdenWolf(517)

Question 952935: 2=t-29

Click here to see answer by Alan3354(69443)

Question 952937: How do I solve this?
-5x(squared) + 25x + 70
Click here to see answer by Alan3354(69443)

Question 953086: rearrange 60x-2x^2 in the form p-2(x-q)^2
Click here to see answer by MathLover1(20849)

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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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, 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39916..39960, 39961..40005, 40006..40050, 40051..40095, 40096..40140, 40141..40185, 40186..40230, 40231..40275, 40276..40320, 40321..40365, 40366..40410, 40411..40455, 40456..40500, 40501..40545, 40546..40590, 40591..40635, 40636..40680, 40681..40725, 40726..40770, 40771..40815, 40816..40860, 40861..40905, 40906..40950, 40951..40995, 40996..41040, 41041..41085, 41086..41130, 41131..41175, 41176..41220, 41221..41265, 41266..41310, 41311..41355, 41356..41400, 41401..41445, 41446..41490, 41491..41535, 41536..41580