Questions on Algebra: Equations answered by real tutors!

Tutors Answer Your Questions about Equations (FREE)

Question 979461: 2X + 3Y=6 and
6X + 9Y=18
Click here to see answer by 6567891151(12)

Question 979478: 5r - 6 = 2r + 9? what is r

Click here to see answer by Fombitz(32388)

Question 979439: Multiplication of algebraic expression
1. (2x^2-3x+1)(2x^2+3x-1)
Thankyouuu
Click here to see answer by Edwin McCravy(20054)

Question 979062: solve for x; determine if solution is real or extraneous
2x/4 + 3x/5 = 1/20
x/x+1 + x^2/2x+2 - 1/-x-1 = 1
Click here to see answer by Fombitz(32388)

Question 979345: In Spencer�s garden, the number of rose bushes is 7 less than 1.5 times the number of carnation bushes. If the number of carnation bushes is c, then the expression representing the number of rose bushes is .
Click here to see answer by Cromlix(4381)

Question 979507: want to sell bike, will be receiving 0.40% of $330.00 of original price?
Click here to see answer by Alan3354(69443)

Question 979580: solve for x:
2/x+4 - 1/x+3 = 1 - 2/x^2+7x+12
please help homework for tomorrow
Click here to see answer by Alan3354(69443)

Question 979643: all variables are positive integers what is the value of each ?
X + Y + Z + W = 34
X � Y � Z � W = 2240
X + X + W = Z

Click here to see answer by Boreal(15235)

Question 979832: consider the line Y=-3/5x-5, find the equation of the line that is perpendicular to this line and passes through the point (6,2)
Click here to see answer by josgarithmetic(39617)

Question 979868: Solve the system of equations given: x+3z=12, -x-2y+z=10, 3x+5y+2z=-7 ... the answer in came up with is x+y=5-2z.
Click here to see answer by Alan3354(69443)

Question 979906: please help me solve this problem in steps. I need an example to help learn how its done. 7(x + 8) + 2(x � 4) = 12
Click here to see answer by josgarithmetic(39617)

Question 980045: good day
sorry could not find Calculus in the list. It's differentiation.
Make use of the symbol Dx and differentiate with respect to x
3x� - 27
--------- (devided by)
x-3
Click here to see answer by Alan3354(69443)

Question 980171: Please help me solve this equation.
2(3n(n-2)) = 3(2n(n-1)+12

Click here to see answer by ikleyn(52777)

Question 980346: How do I solve this equation,
4x - 7 = 2x - 7
I added 7 to both sides, so it looks like this to isolate 4x on the left.
4x -7 + 7 = 2x - 7 + 7
Which gives me
4x = 2x- 7 + 7
but -7 + 7 = 0 so I end up with
4x = 2x ?
Is this correct
Click here to see answer by macston(5194)

Question 980347: I am working on a summer math project and it deals with the pythagorean theorem, which is a concept I have lots of trouble with. So the equation is an isosceles triangle with a 5 meter base and the longest side being 13 meters, however the height is classified as x. I inserted 5 and 13 into the formula a^2 + b^2= c^2 which gives me 5^2 + 13^2 = x^2. I dont know if that is the correct setup but i reached the point where 194 = x^2 and got lost. I do not know what to do next, please help.
Click here to see answer by Fombitz(32388)

Question 980423: Find the area of the circle. Leave your answer in terms of pi. Circumference=4pi
Click here to see answer by MathLover1(20849)

Question 980440: The marked price of a radio is P 875. It is offered on sale at 12% discount. How much is the discount. How much is the sale price?
Click here to see answer by ikleyn(52777)

Question 980536: Perimeter of a rectangular park is 300 feet. the length of the park is 50 feet longer than the width. find the length of the park
Click here to see answer by algebrahouse.com(1659)

Question 980536: Perimeter of a rectangular park is 300 feet. the length of the park is 50 feet longer than the width. find the length of the park
Click here to see answer by Cromlix(4381)

Question 980552: Solve this equation by completing the square.
3x^2 - 4x = -2
Click here to see answer by richwmiller(17219)

Question 980547: The bar graph shows the number who were unemployed in the city during the first two months of 1997 and 1998. How many more workers were unemployed in February 1998 then in February 1997. It shows a graph with the number of workers in February 1997 being 7 and 1998 being 8. What confused me is above the chart it says # of workers in the 1000s. And the difference would only be 1 worker and the question says round to the nearest 500 workers.
Click here to see answer by josgarithmetic(39617)

Question 980696: -6,-5,-3,0,4,9

Click here to see answer by Edwin McCravy(20054)

Question 980745: 1. Mr. Lazaro's class of 35 students is 3 times more than twice the number of students in Mr. Gabuyo's class . How many students are there in Mr. Gabuyo's class ?
2. the 950pesos cost of a pair of lady's shoes in marikina shoe store is only 100 pesos less than three times what is costs in icyland department store. how much is the cost of a pair of lady's shoes in icyland department store ?

Click here to see answer by macston(5194)

Question 980845: How do you solve x+8=50
Click here to see answer by macston(5194)

Question 980849: Differentiate with respect to x: f(x)=(8x^3 + x^2)
Click here to see answer by Timnewman(323)

Question 980862: What is the derivative of f(x) = e^x sin x?
Click here to see answer by Fombitz(32388)

Question 980983: 2m-6=8m then what would 3m be equal to
Click here to see answer by ikleyn(52777)

Question 980997: Solve this.. ? ? ? =30 Fill the boxes using (1, 3, 5, 7, 9, 11, 13, 15) U can also repeat the numbers
Click here to see answer by Fombitz(32388)

Question 981049: If M and N are negative integers and -3M+4N=10,Which of the following could be the value of N?
a. -2
b. -4
c.-6
d. -7
e. -9
Click here to see answer by JoelSchwartz(130)

Question 981126: (8X + 27) x (X + 9))
Click here to see answer by Cromlix(4381)

Question 981128: A tap can fill the tank in 16 minutes and another can empty in 8 minutes.If the tank is already half full and both the taps are opened together,the tank will be:
a. Filled in 12 minutes
b. Emptied in 12 min
c. Filled in 8 min
d emptied in 8 min
e. None of above
Click here to see answer by Edwin McCravy(20054)

Question 981286: Solve: 3x+4=6+3(x-1)
Click here to see answer by Alan3354(69443)

Question 981318: use the elimination method to find all solution of the system of equations
2x^2-y^2=17
x^2+4y^2=13
Click here to see answer by Boreal(15235)

Question 981342: What equation for the ellipse satisfies the given conditions eccentricity: 0.5, foci=(-1.2,0),(1.2,0)
Click here to see answer by josgarithmetic(39617)

Question 981377: Solve for matrix method
x+y+z=3
X+2y+3z=4
2x+4y+9z=6

Click here to see answer by TigerAlgebra(40)

Question 981380: Need help on how to solve this:
Given that h(x)=f(g(x)), find f(g) and g(x). f(g)doesn't equal g & g(x) doesn't equal x
equations: h(x)=^3sqrt(x+2)-6 and h(x)=-4/x^2+x-1

Click here to see answer by josgarithmetic(39617)

Question 981387: How to find the product of [(x+5y)-2c]([3(x+5y)+5c] using the product of two binomials
Click here to see answer by josgarithmetic(39617)

Question 981422: Solve or answer the questions regarding equations. Show work.

Find the roots of x^2 minus 8 = 17
Click here to see answer by macston(5194)

Question 981376: Solve for matrix method
X-y+3z=2
2x+y+2z=2
-2x-2y+z=3
Click here to see answer by Fombitz(32388)

Question 981460: Using the variable x, translate the sentence into an equation. Solving the resulting equation

The quotient of a number and 5 is 11.
The equation is ? (Do not simplify)
Click here to see answer by macston(5194)

Question 981466: If you go on a motorcycle trip of 40 miles in the mountains and 7/20 of the trip is uphill, how many miles of the trip are not uphill? Reduce to the lowest terms
Click here to see answer by rfer(16322)

Question 981418: Solve or answer the questions regarding equations. Show work.

Find the roots of 3x^2 plus 2x minus 4 = 0

Click here to see answer by MathLover1(20849)

Question 981419: Solve or answer the questions regarding equations. Show work.
Find the roots of 5sqrtx minus x = 6
Click here to see answer by mananth(16946)

Question 981419: Solve or answer the questions regarding equations. Show work.
Find the roots of 5sqrtx minus x = 6
Click here to see answer by Edwin McCravy(20054)

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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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33526..33570, 33571..33615, 33616..33660, 33661..33705, 33706..33750, 33751..33795, 33796..33840, 33841..33885, 33886..33930, 33931..33975, 33976..34020, 34021..34065, 34066..34110, 34111..34155, 34156..34200, 34201..34245, 34246..34290, 34291..34335, 34336..34380, 34381..34425, 34426..34470, 34471..34515, 34516..34560, 34561..34605, 34606..34650, 34651..34695, 34696..34740, 34741..34785, 34786..34830, 34831..34875, 34876..34920, 34921..34965, 34966..35010, 35011..35055, 35056..35100, 35101..35145, 35146..35190, 35191..35235, 35236..35280, 35281..35325, 35326..35370, 35371..35415, 35416..35460, 35461..35505, 35506..35550, 35551..35595, 35596..35640, 35641..35685, 35686..35730, 35731..35775, 35776..35820, 35821..35865, 35866..35910, 35911..35955, 35956..36000, 36001..36045, 36046..36090, 36091..36135, 36136..36180, 36181..36225, 36226..36270, 36271..36315, 36316..36360, 36361..36405, 36406..36450, 36451..36495, 36496..36540, 36541..36585, 36586..36630, 36631..36675, 36676..36720, 36721..36765, 36766..36810, 36811..36855, 36856..36900, 36901..36945, 36946..36990, 36991..37035, 37036..37080, 37081..37125, 37126..37170, 37171..37215, 37216..37260, 37261..37305, 37306..37350, 37351..37395, 37396..37440, 37441..37485, 37486..37530, 37531..37575, 37576..37620, 37621..37665, 37666..37710, 37711..37755, 37756..37800, 37801..37845, 37846..37890, 37891..37935, 37936..37980, 37981..38025, 38026..38070, 38071..38115, 38116..38160, 38161..38205, 38206..38250, 38251..38295, 38296..38340, 38341..38385, 38386..38430, 38431..38475, 38476..38520, 38521..38565, 38566..38610, 38611..38655, 38656..38700, 38701..38745, 38746..38790, 38791..38835, 38836..38880, 38881..38925, 38926..38970, 38971..39015, 39016..39060, 39061..39105, 39106..39150, 39151..39195, 39196..39240, 39241..39285, 39286..39330, 39331..39375, 39376..39420, 39421..39465, 39466..39510, 39511..39555, 39556..39600, 39601..39645, 39646..39690, 39691..39735, 39736..39780, 39781..39825, 39826..39870, 39871..39915, 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