# 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 63548: 3x+5y=1 4x-5y=2 2x+3y+5=0 Then instructions says to find the slope of the line. I tried working these problems but I am not fully understanding what to do first. Can you give me a break down step by step how to do these problems. thanks so much for your help. Click here to see answer by praseenakos@yahoo.com(507)

 Question 63609: Can you please help me solve using the elimination method? In a recent game, Charlie scored 42 points on a combination of 18 two and three point baskets. How many shots of each type were made? Click here to see answer by checkley71(8403)

 Question 63610: Can you please help me solve this system of equation using the substitution and elimination methods. 8x + 9 = -5y -3x + 3y = -21 Click here to see answer by stanbon(57303)
 Question 63610: Can you please help me solve this system of equation using the substitution and elimination methods. 8x + 9 = -5y -3x + 3y = -21 Click here to see answer by checkley71(8403)
 Question 63610: Can you please help me solve this system of equation using the substitution and elimination methods. 8x + 9 = -5y -3x + 3y = -21 Click here to see answer by Edwin McCravy(8906)

 Question 63614: a. A=1/3h(a+4b+c) a=2,h=1;c=4;b=0 b. b=a+d(n-1); for d This is a literal equation solve for the unknown. I am not sure how to solve these equations please help me. Click here to see answer by stanbon(57303)

 Question 63650: How do you find the standard form for a linear equation? For example : y=2x+3 Now what do I do??? Please help me. Algebra 1 Pg. 326 # 16 Click here to see answer by funmath(2925)

 Question 63647: How do you solve this problem? please show work. Solve by graphing y=2x+3 x+y=3 Click here to see answer by funmath(2925)

 Question 63880: Solve the system by substitution. x + 4y = –4 3x – 3y = –12 Click here to see answer by checkley71(8403)

 Question 63879: Rewrite the equation 4x – 10y = 11 as a function of x. Click here to see answer by rahman(247)

 Question 63984: For the equation x-(sqrt)x=0, solve for all values of x that satisfies the equation and show the work. Click here to see answer by ptaylor(2048)

 Question 63983: for the function y= 1/x-1, give the y values for x=-2, -1, 0, 1, 2, 3. Using these points, draw a curve and show the graph. Click here to see answer by praseenakos@yahoo.com(507)

 Question 64039: I am a parent trying to help my daughter with this equation. I am not sure what I am doing incorrectly. -4=7x-(-1)/8 Click here to see answer by sarahschober(35)
 Question 64039: I am a parent trying to help my daughter with this equation. I am not sure what I am doing incorrectly. -4=7x-(-1)/8 Click here to see answer by praseenakos@yahoo.com(507)

 Question 64031: In section 3-8. I need to know how to work out the problems. The computer will give the answers, but that doesn't help me learn. For example Number 15 page 168 y= mx+b, for m I do not understand this at all. Can you help me? Please Nicole 8th grade Click here to see answer by venugopalramana(3286)

 Question 64119: what is the slope by writing the equation in slope intercept form...7x+2y=11 I have tried this several different ways and the more I do it the more I confuse myself. Thanks Click here to see answer by josmiceli(9669)

 Question 64245: Solve the following system of linear inequalities by graphing. 3x + 4y < 12 x + 3y < 6 x > 0 y > 0 Click here to see answer by Edwin McCravy(8906)

 Question 64243: IS THIS A PERPENDICULAR LINE, PARALLEL LINE, OR NEITHER OF THOSE TWO LINES. X=2, Y=9 Click here to see answer by funmath(2925)
 Question 64243: IS THIS A PERPENDICULAR LINE, PARALLEL LINE, OR NEITHER OF THOSE TWO LINES. X=2, Y=9 Click here to see answer by praseenakos@yahoo.com(507)

 Question 64309: Is x=2,y=9 a parallel line, perpendicular line, or neither of these two lines. thanks for your help. Hockeyk41@aol.com Click here to see answer by funmath(2925)

 Question 64389: Question #21 is Use the substitution method to solve the linear system. These are the equations:2x+3y=31, y=x+7 i tried to substituted it then it looked like this 2x+3(x+7)=31 then i combined like terms and it looked like this 5x+7=31 i took away the 7 to both sides and got 5x=24 i divided both sides by 5 to isolate the variable and got x=4.8 then i plugged that in for the next equation and i got 2(4.8)+3y=31 i solved the x so i got 9.6+3y=31 i subtacted the 9.6 and then it looked like this 3y=21.4 i dived it by three and i ended up with y=7.13 so the answer i got was (4.8,7.13) but the answer in the back of the book says it's (2,9) i don't know what i did wrong. please help me? Click here to see answer by stanbon(57303)
 Question 64389: Question #21 is Use the substitution method to solve the linear system. These are the equations:2x+3y=31, y=x+7 i tried to substituted it then it looked like this 2x+3(x+7)=31 then i combined like terms and it looked like this 5x+7=31 i took away the 7 to both sides and got 5x=24 i divided both sides by 5 to isolate the variable and got x=4.8 then i plugged that in for the next equation and i got 2(4.8)+3y=31 i solved the x so i got 9.6+3y=31 i subtacted the 9.6 and then it looked like this 3y=21.4 i dived it by three and i ended up with y=7.13 so the answer i got was (4.8,7.13) but the answer in the back of the book says it's (2,9) i don't know what i did wrong. please help me? Click here to see answer by chitra(359)

 Question 64399: Question #33 says: use the substitution method to solve the linear system these are the equations 7g+h=-2 and g-2h=9. i reworte the second equation to make it look like this g=2h+9 then i plugged them in and got this 7(2h+9)+h=-2 turning out in 15h+63=-2 then i subtracted the 63 an got 15h=-65 then i divided the -65 by 15 to isolate the variable and got -4 33/100 but in the back of the book it says the y is 4 1/3 what did i do wrong? help please! Click here to see answer by stanbon(57303)

 Question 64392: The instuctions state to factor out the greatest common factor and write the expression in fadctored form. Use distributive property to verify the ans. 51. 2x3rd power-3x4th power+2x3rd power. 53. 25m5th power-50m4th power+100m3rd power. Please help me solve not sure what to do!!! Click here to see answer by chitra(359)

 Question 64402: 2876question #42 says you are selling tickets for a high school play students tickets cost 4\$ and general admission cost\$6. you sell 525 tickets and collect \$2876 how many of each type of ticket did you sell? so far the only thing i get is that one of the equatons is i think 4x+6y=525 but i don't know how to get the other one,? help? Click here to see answer by checkley71(8403)

 Question 64450: 59. r(r-2s)-s(2s-r) 61. a(x-4)-b(x-4) the instructions says to factor out the greatest common factor and write the expression in factored form. use the distributive property to verify the ans. the ans given for both polynomial are 59. (r-2s)r+s) and 61 (x-4)(a-b) Please help me with this to solve I AM NOT SURE OF THE STEPS THANKS Click here to see answer by stanbon(57303)

 Question 64448: the instructions are factor out the greatest common factor ad write the expression in factored form.. use the distributive property to verify your ans. 55. 45m2powern3power-36mn2power+63m3rd power n 57. 3a(1-5b)-4b(1-5b) please help me in solving the ans in the book for ea is 55. 9mn(5mn2power -4n+7m2nd power) 57. ans: (1-5b)(3a-4b) please show me step by step..thanks so much Click here to see answer by stanbon(57303)

 Question 64452: THIS IS FACTOR BY GROUPING IS THIS SIMILAR TO FACTOR OUT THE GREATEST FACTOR 73. X2POWER+5Y-XY-5X 75. AR+BR-A-B HOW TO GROUP THESE ACCORDING TO THE INSTRUCTIONS WHEN I TFRIED MY ANS WAS WRONG ACCORDING TO THE BOOK IS THIS ANY DIFFERENT THAN FACTORING OUT? Click here to see answer by stanbon(57303)

 Question 64454: 77. X2POWER+2XY+3X+6Y 79. X2POWER Y-X2POWER-3Y+3 81. X4POWER-2X3POWER+X2POWER+X-1 FACTOR BY GROUPING MY ANS FOR 77. IS X2PWER-2Y-3X+6X IS THIS CORRECT HELP Click here to see answer by Earlsdon(6287)

 Question 64465: 83. 3A^2+3AB-B^2 85. 2Y^2+5Y+6Y+15 87. 2X^2-3XY -2XY+3Y^2 89. M^4+4M^3+4M^2+2M+4 pLEASE HELP ME WITH THESE THE ANS I GOT WERE OFF ACCORDING TO THE BOOK. I REALLY APPRICIATE ALL THAT YOU DO. Click here to see answer by stanbon(57303)

 Question 64927: Can I also have help with this one... solve for x and y for x-y=4 and x+y=4 I am having such a hard time solving the problem... please help Click here to see answer by navytutor(7)

 Question 64999: 3x-6y=30 ---- (1) 6x+y =34 ---- (2) 2*(1)implies 6x-12y=60 ---- (3) (2)-(3) implies 13y=-26 i.e.,y=-2 Click here to see answer by madhujiithcharu@yahoo.co.in(28)

 Question 65072: A furniture manufacturing company manufactures tables and chairs. A table requires 8 labor-hours for assembly and 2 labor-hours for finishing. A chair requires 2 labor-hours for assembly and 1 labor-hour for finishing. The maximum labor-hours available per day for assembly and finishing are 400 and 110, respectively. If x is the number of tables and y is the number of chairs produced per day, determine how many tables and chairs can be assembled and finished. Answer x = # of tables y = # of chairs x + 2y = 400, assembly 8x + 2y = 110, finished HELP!!!! Click here to see answer by stanbon(57303)

 Question 65103: I don't know the two equations for problem 24 in chapter 7, lesson 4. Can you help me or give me the two equations needed to solve the problem? Click here to see answer by funmath(2925)

 Question 65222: what does this meen? What do I need to do? How would i solve this problem? Write an equation of the line that passes through the point and has the given slope. Write the equation in slope-intercept form. (0,2), m=1 Click here to see answer by 303795(595)

 Question 65302: there are 2 linear equations, one is y=6-3/4x the other is y=x-3 at what point do these lines intersect Click here to see answer by funmath(2925)

 Question 65562: OK, I am not a student, but I have recently been asked to find an answer for this equation by a friend. Everything I can do, or find on line, says that if the values are different numbers, there is no viable solution. Please help me with this. X*Y = X+Y What are the values of X and Y? Or is there no actual answer? Thank you. Click here to see answer by stanbon(57303)

 Question 65601: Solve x + y + z = 11 2x + y - z = 13 x = 2y Click here to see answer by praseenakos@yahoo.com(507)

 Question 65631: Write the equation of the line L satisfying the given geometric conditions. (36) L has y-intercept (0, -3) and is parallel to the line with equation y = 2/3x + 1. (40) L has y-intercept (0,2) and is perpendicular to the line with equation 2x-3y = 6. Click here to see answer by venugopalramana(3286)

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