# 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 528220: solve the following sysem ofequations. x+3=5(1) x=3-3y(2) What is the solution of the system? Click here to see answer by Maths68(1474)

 Question 528267: can you solve for x and y with these. y=2x and 6x-y=8 Click here to see answer by scott8148(6628)

 Question 528396: linear algebra elimination method 13) 2/3x+2/5y=4/5 1/2x+2/3y=-1/2 12)9/14x+y=19/7 -20x+21y=144 11)x+5/3y=7/3 2/5x-y=3/5 10)x+9/4y=7/4 5/9x-y=2/9 8)18x-3y=-3 6x+7y=39 6)15x+14y=2 12x-6y=-7 Click here to see answer by Edwin McCravy(8909)

 Question 528732: the length of a rectangle is 20ft. less than twice the width. of the perimeter of the rectangle is 260ft. find the length and width of the rectangle Click here to see answer by mathstutor494(95)

 Question 529048: how would you solve this to graph? 3x-y=-2 3x-y=0 Click here to see answer by solver91311(16897)

 Question 529326: when y = 3, which of the following is false y is prime and y is odd y is odd or y is even y is not prime and y is odd y is odd and 2y is even Click here to see answer by stanbon(57387)

 Question 529302: Dear tutors: I have 3 problems due this evening involving using set builder notations 1) x+2 is greater than/equal to -3/11 2) -5/6x > 4/11 3) -10 (x+1) is less than/equal to 12x+7 Any help is appreciated. kathrynneconway@yahoo.com Click here to see answer by nerdybill(6962)

 Question 529465: Determine whether the point (0, -8) is a solution of the system -3x + 9y = 72 9x + 3y = 24 by substituting the point into each equation. Click here to see answer by stanbon(57387)

 Question 529411: I hope it is not too late in the evening to ask a question. But can someone solve this equation by clearing the fractions? -x+2/5=5-4/3x Thanks kathrynenconway@yahoo.com Click here to see answer by ankor@dixie-net.com(15660)

 Question 529563: Use elimination method to find all solutions of the system of equations. 8x+4y-112 40x+2y=380 Click here to see answer by lmeeks54(105)

 Question 529564: Use elimination method to find all solutions of the systems of equations. 4x^2-y^2=75 x^2+5y^2=150 Click here to see answer by ankor@dixie-net.com(15660)

 Question 530090: Use the method of substitution to solve the system. (Enter your answer(s) as ordered pair(s). If there is more than one ordered pair, use commas between ordered pairs.) y2−4x2=19 9y2+16x2=275 Click here to see answer by unlockmath(1603)

 Question 530140: A boat takes 4 hours to travel 36 miles downstream and 12 hours for the return trip. What is the speed of the current and the speed of the boat in still water? Click here to see answer by KMST(1870)

 Question 530089: Use the method of substitution to solve the system:(Enter your answer(s) as ordered pair(s). If there is more than one ordered pair, use commas between ordered pairs.) xy=2 5x-y+9=0 Click here to see answer by ankor@dixie-net.com(15660)

 Question 530260: Solve the following system of equations. x + 3y + 2z = –16 2x – y + 2z = –15 2x – 2y – z = 1 Click here to see answer by Math_prodigy(21)

 Question 530267: 1) 2 men and 7 boys can do a piece of work in 4 days. The same work is done by 4 men and 4 boys in 3 days. How long would it take 1 man and 1 boy to do the same? Click here to see answer by Edwin McCravy(8909)

 Question 530554: Solve the system shown. Put your answer in (x, y) format with no spaces. 2x + 9y = 0 3x + 5y = 17 Click here to see answer by oberobic(2304)

 Question 530555: Solve the system shown. Put your answer in (x, y) format with no spaces. 2x + 9y = 0 3x + 5y = 17 Click here to see answer by oberobic(2304)

 Question 530637: `Graph the following 2y=10 Find two points on the line to be graphed and enter their coordinates in the boxes below. A: _______ , ________ B: _______ , ________ Click here to see answer by oberobic(2304)

 Question 530934: Hello. I am having trouble with the following question. Can you please help? 500 tickets were sold for a music concert. Adult tickets sold for \$7.50 and children tickets sold for \$4. Total ticket sales were \$3312.50. How many of each kind of ticket were sold? Click here to see answer by oberobic(2304)
 Question 530934: Hello. I am having trouble with the following question. Can you please help? 500 tickets were sold for a music concert. Adult tickets sold for \$7.50 and children tickets sold for \$4. Total ticket sales were \$3312.50. How many of each kind of ticket were sold? Click here to see answer by KMST(1870)

 Question 531104: how do i solve these equations for an ordered triple? x+Y-5z=-5 y-2z=14 4y-2z=8 Click here to see answer by Alan3354(30993)

 Question 531439: Solve the system. Enter answer as an ordered pair (t,v). 1/2t - 1/5v = 5/2 2/3t + 1/4v = 7/12 Click here to see answer by stanbon(57387)

 Question 531495: good afternoon, please help me solve this problem: Kelly Fisher has a total of \$26,000 invested in two municipal bonds that have yields of 8% and 10% interest per year, respectively. If the interest Kelly receives from the bonds in a year is \$2422, how much does she have invested in each bond? Let x = the amount in the first bond. Let y = the amount in the second bond. Click here to see answer by scott8148(6628)

 Question 531618: HOw can you tell which type system you have by looking at just the two linear equations. Click here to see answer by solver91311(16897)

 Question 531829: The point (46,0) lies on the line 2x + 10y = 92 determine if this point is a solution of the system. 2xy + 10y = 92 -6x - 2y = -24 Click here to see answer by KMST(1870)