# 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 610405: -4x+3y=6 y=4/3x-5 --- How many solutions does this system of linear equations have? Click here to see answer by Alan3354(30993)

 Question 610264: Find an equation of the line L that passes through the point (−2, 6) and satisfies the given condition. (Let x be the independent variable and y be the dependent variable.) The x-intercept of L is 5. Click here to see answer by ankor@dixie-net.com(15667)

 Question 610513: Christine went shopping and bought each of her 9 nephews a gift, either a video costing 14.95. Or a cd costing 16.88. She spent 148.06 on the gifts. How many videos and how many cd's did she buy? Click here to see answer by scott8148(6628)

 Question 610579: how do i graph linear equations? grahing is so difficult for me and I hate to see it when I'm doing trigenometry or something like that. Please teach me. how do you solve this question: y=-2x+1 y=x-5 Click here to see answer by stanbon(57424)

 Question 610786: Which graph correctly shows the solution to this equation? 5y – 2x = 25 Click here to see answer by solver91311(16897)

 Question 611022: Use the method of substitution to solve the system of linear equations. 2x-y=6 7x-3y=23 Click here to see answer by stanbon(57424)

 Question 611513: I am lost on this equation solution. I got the answer from the answer sheet but still can't figure out how to get there. x/3 + y/6 = 1 x/2 - y/4 = 0 answer is 3/2, 3 How? Click here to see answer by richard1234(5390)

 Question 611900: I need help on solving linear equations by elimination by promblem is solv ing this equation : 5(2x-y)=x+20 3x+8=4x-2y please help me solve it!!!!! Its hard Click here to see answer by Maths68(1474)

 Question 612439: The smaller of two numbers is 9 less than the larger, and their sum is 38. Find the numbers. Click here to see answer by ewatrrr(10682)

 Question 612623: Divide 184 into two parts such that 1/3 of one part may exceed 1/7 of the other part by 8. Click here to see answer by stanbon(57424)

 Question 612625: The sum of two numbers is 9 and their difference is 6. What are the two numbers? Click here to see answer by nerdybill(6963)

 Question 612690: How do I solve this system? y=5/2x-3 y=-1/2x+3 Click here to see answer by Alan3354(30993)

 Question 612624: At a party, Colas, squash and fruit juice were offered to the guests. One fourth of the guests drank cola, one third drank squash, two fifths drank fruit juice and 3 people did not drink anything. How many guests were there in the party? Click here to see answer by richwmiller(9143)

 Question 613322: I'm stuck on the following question: Last month Darlene earned \$32 per day and Lisa earned \$36 per day. Together they earned a total of \$1180. How much did each earn if Darlene worked 5 more days than Lisa? Click here to see answer by ewatrrr(10682)

 Question 613673: The solution of the system { 2x + y = 13, 5x - 2y = 19 } is (5, 3). How are the graphs of the 2 equations related? Click here to see answer by solver91311(16897)

 Question 613728: The question is "Find the slope of the line through each pair of points" (2,-4) & (-3,-4) I need help on figuring it out. Click here to see answer by jim_thompson5910(28598)

 Question 613729: "Find the slope of each line" y= 4/3x -2 what are the steps to solve the solution? Click here to see answer by jim_thompson5910(28598)

 Question 613769: find the intercepts for the equation 3x+y=-7 x-intercept: y-intercept: Click here to see answer by jim_thompson5910(28598)
 Question 613769: find the intercepts for the equation 3x+y=-7 x-intercept: y-intercept: Click here to see answer by stanbon(57424)

 Question 613778: Find the slope of each line through (-2,3) & (5,-6) i think i subtract the y & x1's to the y & x2's but dont know where to go from there.. help please Click here to see answer by jim_thompson5910(28598)

 Question 613788: "Find the slope of each line" 6x-2y=5 i dont know if i was supposed to plug in the zero even though there already is a number. help? Click here to see answer by scott8148(6628)

 Question 613791: determine weather the two lines are parallel perpendicular or neither 2x+2y=7 2x-2y+5 Click here to see answer by scott8148(6628)

 Question 613841: If there is no solution or infinitely many solutions, state so. Put the value for x in the blank: 2x + 3y = 9; 11x + 7y = 2 To solve for x, I keep getting 4 but I am thinking this is not correct. Can you help? Click here to see answer by scott8148(6628)

 Question 614383: A company produces a product which it sells for \$55 per unit.each unit cost the firm \$23 in variable expenses,and fixed costs on an annual basis are \$400,000. if x equals the number of units produced and sold during the year: (a) formulate the linear total cost function. (b)formulate the linear total revenue function. (c)formulate the linear profit function. Click here to see answer by bucky(2189)

 Question 614468: Does the following have a question have unique solution? Why? [ 4x - 6y = -7 -2x + 3y =18 Click here to see answer by Alan3354(30993)

 Question 614452: 10.) "find the slope of the line through each pair of points" (3, -1) & (2,1) i tried doing y2-y1/x2-x1 formula but I'm not sure if the answer is -2 / 1 Click here to see answer by richwmiller(9143)

 Question 614544: 2x – 5y = -1 x – 3y = -3 Click here to see answer by sophxmai(60)

 Question 614619: (-3, ___) is a solution of y = 4 - 3x Now what I have tried is: y = 4 - 3(-3) y = 4 - -9 y = -5 So then I y = 4 - 3(5) y = 4 - 15 y = 9 I can't figure out this problem and I still don't understand how to come up with the two numbers needed Click here to see answer by stanbon(57424)

 Question 614903: Given info: y= 2x+1 y=2x-1 Is there a common solution for this problem? Click here to see answer by Alan3354(30993)

 Question 614288: Using the equation: 2x - y = 4 What is the x-intercept, y-intercept, and slope of this line? Click here to see answer by asuar010(324)

 Question 614404: what is the equation that is parallel to 3x-2y=4 and passes through the origin? Click here to see answer by asuar010(324)

 Question 615318: can you please help me with this solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions state this. 11x+8y=103 22x-7y=68 Click here to see answer by Alan3354(30993)