# Questions on Algebra: Systems of Linear Equations answered by real tutors!

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 Linear Solvers Practice Answers archive Word Problems Lessons In depth

 Question 465551: Solve using any method. (x/2) + (y/3) = 2/3 and (x/5) + (5y/2) = 1/4 I cannot figure out how to do this problem I have been working on it for an hour and have not figured it out please help. Click here to see answer by ewatrrr(10682)

 Question 466055: 3x + 2y = 2 -2x + y = 8 Click here to see answer by algebrahouse.com(1079)

 Question 466023: If the ordinate equals the abscissa and x {-3, 0, 12}, which of the following sets of ordered pairs satisfies the given conditions? {(3, -3), (0, 0), (-12, 12)} {(-3, 3), (0, 0), (12, -12)} {(-3, -3), (0, 0), (12, 12)} Click here to see answer by ewatrrr(10682)

 Question 466181: Solve the system of equations { y = x + 1 { y = -4x + 11 --------------- x, y ( , ) Thanks! Click here to see answer by asuar010(324)

 Question 466169: Joe orders an 8 ounce martini that is 4.7% vermouth. sue orders an 8 ounce martini that is 100% gin. a martini is made with gin and vermouth. Joe and Sue give the drinks to Jane. Jane would like to mix a portion of each drink, so that she has an 8 ounce martini that is 99.8% gin. How much does Jane use of each drink? Click here to see answer by ankor@dixie-net.com(15649)

 Question 466358: 5 years ago, john age was half of the age he will be in 8 years.how old is he now Click here to see answer by jorel1380(2518)

 Question 466401: I can't seem to get this... any help would be appreciated... Classify the function as a linear, quadratic, or exponential. f(x) = (x - 2)(x + 6) A) Linear B) Quadratic C) Exponential Click here to see answer by Theo(3458)

 Question 466756: Solve using the substitution method. Show your work. If the system has no solution or an infinite number of solutions, state this.-8x – 4y = -68x + 3y = 16 I forgot how to do this...please help.. Click here to see answer by Alan3354(30993)

 Question 466767: Use a Graphing calculator to solve the system: √3x - y = 5 5x + y = 7 (The answer must be an ordered pair/ this symbol √ is suppose to be a square root) Click here to see answer by ccs2011(207)

 Question 466770: 4x + 3y + z = 25 x - 3y + 2z = -9 11x - 2y + 3z = 18 write solution as an ordered triple Click here to see answer by Ryan O'Hara(46)

 Question 466769: x + y + z = -2 2x + 5y + 2z = -16 -x + 8y - 3z = -44 (answer must be a ordered triple) Click here to see answer by Ryan O'Hara(46)

 Question 466857: Hello, I have a question on solving linear equations. My answer is 4. I would to see if my answer is correct. 1/2(x+2) + 3/4(x + 4) = x + 5 Please let me know what you get. Thank you Click here to see answer by stanbon(57307)
 Question 466857: Hello, I have a question on solving linear equations. My answer is 4. I would to see if my answer is correct. 1/2(x+2) + 3/4(x + 4) = x + 5 Please let me know what you get. Thank you Click here to see answer by ccs2011(207)

 Question 466908: Construction. Public buildings regularly include steps with 7-in. risers and 11-in. treads. Find the grade of such a stairway. Click here to see answer by stanbon(57307)

 Question 466968: i can't under stand if 3x+2y = -17 2x-5y = 14 the what is the process i can't under stand what i need is Ex: this i understand X+2y=5 y=2x X+2y=5 x+2(2x)= 5 x+4x=5 x+ 4= 5 5x and 5 divided by 5 y = 1 that i under stand but below i don't get it THIS!! Explanation: Solving: 3x+2y = -17 2x-5y = 14 Using Substitution Method. Expressing x as a function of y (from the first equation) x = (-17 -2y)/3 Substituting this expression into the second equation: 2(-17+2y)/3-5y = 14 Simplifying this expression: (-19)y = 76 or y = -4 Now, substituting y = -4 back into the x expressed as a function of y: x = (-17-2y)/3 = -3 Click here to see answer by rfer(12657)

 Question 466976: Post your 50-word response to the following: How can you determine if two lines are perpendicular Click here to see answer by hhlebiczki(1)

 Question 468082: i am having trouble solving equations. where can i get help to make them seem simple Click here to see answer by rfer(12657)

 Question 468205: i need help to simplify the linear system Click here to see answer by Alan3354(30993)

 Question 468361: I am trying to figure out how to solve this problem using the substitution method. I know that it equals 1000, but I can't figure out how to show the proper work. Any help of guidance would be appreciated. Thank you. 60+.20(x-550)=120+.15(x-800) Click here to see answer by ewatrrr(10682)

 Question 468728: what are the X and y values(in whole numbers) of the equations y=-5/7x-11/7 and y=-1/3x+5/6 Click here to see answer by jorel1380(2518)

 Question 468677: two types of candy sell for \$2.50 per pound and \$4.00 per pound. A store clerk is trying to make a 5 pound mixture worth 17.60. How much of each type of candy should be included in the mixture? Click here to see answer by mananth(12270)

 Question 468927: How do you do this problem? Minimize: Z = 6x+15y Subject to: 4x+5y>=27; 8x+4y>=32; x>=0;y>=0 It's wanting to know the minimum value of Z and what point it occurs at. I can't figure out how to solve this. Thanks. Click here to see answer by stanbon(57307)

 Question 468975: How do I minimize: z=13x+9y subject to: 3x+4y>=21; 8x+4y>=32; x>=0; y>=0 ? Click here to see answer by ccs2011(207)

 Question 469016: Solve the system by substitution: -3x+6y=21 2x-4y=14 I have tryed completing this by making the -3x+6y=21 into an x=2y-7. Then I got 2(2y-7)-4y=14 which turns into 4y-14-4y=14 and then -14=14. If this problem is not possible, then what do I write as an answer?? Thank you so so so so so so much! (: Click here to see answer by jim_thompson5910(28593)

 Question 469501: two executive in cities 300 mi apart drive to a business meeting at a location between their cities. they met after 4 hours. find the speed of each car if one travels 20 miles per hour faster than the other Click here to see answer by amoresroy(333)

 Question 469646: I am having a hard time understanding how to write the slope-intercept form to 13x-11y=-12 Can someone help with breaking it down for me? Thanks Click here to see answer by Tatiana_Stebko(1326)

 Question 469689: i need help solving 5x-2+3(x-11) =5 using distributive property Click here to see answer by rfer(12657)

 Question 469893: Marks: 2 Solve the system of equations by the best way you think is possible. Put the answer in an ordered pair. 2x - 6y = 6 2x + 3y = 24 Click here to see answer by sofiyac(695)
 Question 469893: Marks: 2 Solve the system of equations by the best way you think is possible. Put the answer in an ordered pair. 2x - 6y = 6 2x + 3y = 24 Click here to see answer by ewatrrr(10682)

 Question 469870: How do I check if this answer is really correct in elimination method. 1.) 3x - 2y = 6 SS={(4,3)} 5x + 7y = 41 2.) 5x - 2y = 8 SS={(2,1)} 3x - 5y = 1 Click here to see answer by Edwin McCravy(8908)

 Question 470387: In the following system of equations, what does y equal? 10x+9y=3 8x+y=6 Click here to see answer by sofiyac(695)