Questions on Algebra: Equations answered by real tutors!

Tutors Answer Your Questions about Equations (FREE)

Question 865898: Find z by the use of determinant : 3x-4y+2z+8=0, x+5y-3z+2=0, 5x+3y-z+6=0
Click here to see answer by Edwin McCravy(20054)

Question 865933: 3;x;10;y;21 is a quadratic pattern .Calculate the values of x and y
Click here to see answer by htmentor(1343)

Question 866043: What are the values of x in the equation x(x-6)=4(x+6)
Click here to see answer by ewatrrr(24785)

Question 866127: (5w-4)(6w+6)
Click here to see answer by lenny460(1073)

Question 866162: the difference between 2 positive integers is 5. if the smaller is added to the square of the larger,the sum is 301, find the integers.
please help me and i thank you in advance.
Click here to see answer by DrBeeee(684)

Question 866133: Solve The Equation
8-2x=30
Click here to see answer by farbonara(13)

Question 866203: The cost c, in dollars, of a taxi ride is related to the distance d, in miles, of the ride. The cost for taxi A is given by the equation c = 3.5d + 2, and the cost for taxi B is given by c = 3d + 5. For what distance is the cost of each taxi ride the same? How much would this trip cost?
Click here to see answer by richwmiller(17219)

Question 866367: At a hockey game, a vender sold a combined total of 159 sodas and hot dogs. The number of sodas sold was two times the number of hot dogs sold. Find the number of sodas and the number of hot dogs sold.

Click here to see answer by ewatrrr(24785)

Question 866449: 2x^2+5x+3=0
Click here to see answer by checkley79(3341)

Question 866547: How do i simplify this with a coefficient in front of the parentheses without a variable?? /
i have tried distributing the 2 to the whole top half of the problem and then simplifying but it doesn't come out right...
Click here to see answer by josgarithmetic(39617)

Question 862096: what is 15m * 5=155

Click here to see answer by tommyt3rd(5050)

Question 866516: Use the Zero product property to solve each equation. Check your answer

(x-10)(x+5)=0
Thank you, show all work please!
Click here to see answer by richard1234(7193)

Question 866787: Solve the system of equations/inequalities:
2x + 2y = 12
4x � 2y = 9
Click here to see answer by ewatrrr(24785)

Question 866863: One number is 5 times another number and their sum is -60. What is lesser of the two numbers?

Click here to see answer by ewatrrr(24785)

Question 866488: What is the product of the solutions to the equation [x+5]-1=2?
Click here to see answer by Fombitz(32388)

Question 866900: Help me please!
Use the Zero Product Property to solve each equation.
show all work please :)
(x+5)(x)=0
thanks!

Click here to see answer by Fombitz(32388)

Question 866929: Given: y varies directly as x and inversely as z.
Find k (the constant of variation) when x = 6, z = -2 and y = -15.
Click here to see answer by richwmiller(17219)

Question 866992: Solve each quadratic equation by factoring.
x^2+16x+48=0

Would the solutions be x=-12 and x=-4?
can someone help please, thanks!
Click here to see answer by Alan3354(69443)

Question 861973: Melissa is thinking of two numbers. She gives two hints. Their sum is one and their difference is five. Solve this system of equations by graphing to find her two numbers. {x + y = 1 x - y = 5
Click here to see answer by tommyt3rd(5050)

Question 866765: {x + y = 9, 1/x + 1/y = 1/2}
Find x and y.
Click here to see answer by tommyt3rd(5050)

Question 867041: solve for y:
(1/16)^3-y = 4^-3(2y-7)
3-y is raised as well as -3(2y-7)
Click here to see answer by Fombitz(32388)

Question 867180: Solve the equation by graphing the function :
x^2-4=0
Help please, and can you actually show the right way to graph it to after solving the equation !! thank you so much.
Click here to see answer by ewatrrr(24785)

Question 867184: Solve the equation by graphing the function.
-x^2+12x-36=0
show all work please, thanks.
Click here to see answer by ewatrrr(24785)

Question 867188: Solve the equation by graphing the function
2x^2=3x^2-2x-8
show all work please thanks!
Click here to see answer by ewatrrr(24785)

Question 867218: it a fractions
3/4x-2/3-1/2=x+1/6
Click here to see answer by Fombitz(32388)

Question 867293: On his first two social studies tests, Billy made an 86 and a 93. What grade must Billy make on the third test to have an average of 90 for all three tests?
Click here to see answer by stanbon(75887)

Question 864031: A+B=C
C+D=EA
Find the value of each variable.
Click here to see answer by tommyt3rd(5050)

Question 867415: Consider the function f(x)=2x^2-0.9x-1 and calculate f (0) and f (1.5) in R program
Click here to see answer by stanbon(75887)

Question 867462: Can you please give me thorough step by step explanations so that I can understand the concepts on how to determine whether the given number is a solution of the equation? the equation; 3(w+1)+11=2(w+8) :2 Thank you
Click here to see answer by solver91311(24713)

Question 867510: Solve y=2xz^2-xy
Click here to see answer by Alan3354(69443)

Question 867558: Please help me solve this equation. Solve for x as a reduced (simplified)fraction:
3x/4 + 2/3 = 17/4
Click here to see answer by jim_thompson5910(35256)

Question 867550: Please help me solve this: Solve for x as a reduced (simplified) fraction:
3x/4 + 2/3 = 17/4

Click here to see answer by Alan3354(69443)

Question 867578: If y = 16 the formula x = 10y gives which value for x
Click here to see answer by jim_thompson5910(35256)

Question 864943: What is the value of u in this equation?
5u-10=46
Click here to see answer by tommyt3rd(5050)

Question 864745: Findf(x)=x 3n
Click here to see answer by tommyt3rd(5050)

Question 865644: 5x + 2 = 10x + 5
Click here to see answer by tommyt3rd(5050)

Question 865962: 3x+3=x-9
Click here to see answer by tommyt3rd(5050)

Question 867645: 8=56
7=42
6=30
5=20
3=?
Click here to see answer by checkley79(3341)

Question 867685: Identify the solution(s) of the system of equations, if any.
5x+2y=2 and 4x-2y=6

Click here to see answer by Alan3354(69443)

Question 867779: Good afternoon
Three rectangular corrals are to be made from 100 yards of fencing as seen below. Determine the dimensions that will produce the maximum area. What is area of one of the corrals?
Thanks :D
Click here to see answer by solver91311(24713)

Question 867792: Please help solve this f(x)=x^2+3x+2
Click here to see answer by nerdybill(7384)

Question 867777: Good afternoon
The perimeter of a rectangle is 50 yds. What are the dimensions that will produce the maximum area of such a rectangle?
Thanks :D
Click here to see answer by solver91311(24713)

Question 867776: Good afternoon
The height of a triangle is two more than three times the base. Determine the dimensions that will give a total area of 28 yds2. What is the minimum area of such a triangle?
Thanks :D
Click here to see answer by josgarithmetic(39617)

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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