# 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 567960: Can you do this for me please 5[2-3(6x-1)] Im not sure how you do this Click here to see answer by Theo(3504)

 Question 568268: how do you make a system of equations out of a word problem? Click here to see answer by mananth(12270)

 Question 568510: What the x and the y in substitution system of equations. 3x+y=9 y=-5x+9 show details please. Click here to see answer by jim_thompson5910(28715)

 Question 568396: What is the Solution to the system? 2x - 3y = -27 -3x + 2y = 23 [ I got -3 for my answer] Click here to see answer by jim_thompson5910(28715)

 Question 568737: 4x + 7y = 8.77 8x + 14y = 15.8 I ued substitution and got x=1.2175 and y=39 over 70. Obviously I did something wrong. Click here to see answer by mananth(12270)

 Question 568770: How do I solve: y=x^3-2x^2+x-1 y=-x^2+3x-1 I substituted y=-x^2+3x-1 -x^2+3x-1=x^3-2x^2+x-1 0=x^3-x^2-2x Not sure what to do next Click here to see answer by josmiceli(9817)

 Question 568670: How do you tell on a coordinate graph if it is a function or not???? Click here to see answer by richard1234(5390)

 Question 568888: 13x+7y=88 x+8y=-38 Solve this problem using the Solution method Click here to see answer by mananth(12270)

 Question 568731: what is x and y for this problem, whats the solution 4x+5y=48 y=3x+2 Click here to see answer by 10301650(32)

 Question 569135: Which is the solution to the system? x+5y = -15 y = 1/5x + 1 Below is how I solved it: x+5(1/5x+1)=-15 x+(x+5)=-15 x^2+5=-15 x^2+5-5=-15-5 x^2=-20 Is this correct ? Click here to see answer by Alan3354(31532)

 Question 569202: What are the solutions to the equation below: |2x+3|-5=12 I have chosen x=-5 or x=7 Click here to see answer by Alan3354(31532)

 Question 569598: how many solutions does this system of equations have??? 2x+3y=6 y=-2/3x-1 it woudd be amazing if you could answer soon! Click here to see answer by Alan3354(31532)
 Question 569598: how many solutions does this system of equations have??? 2x+3y=6 y=-2/3x-1 it woudd be amazing if you could answer soon! Click here to see answer by TutorDelphia(193)

 Question 569698: 28:39 What is the x-coordinate of this solution? 2x+3y=-27 -3x+2y=23 My Work is Shown Below: 3(2x-3y=-27) -3+2y=23 __________ 6x-9y=81 -3x+2y=23 _________ -18x-7y=104 +18 +18 -7y=122 __ ___ -7 -7 y= -17.42 ________________________________________________________________________________ Is that correct? Click here to see answer by Alan3354(31532)

 Question 569696: 28:39 What is the x-coordinate of this solution? 2x+3y=-27 -3x+2y=23 My Work is Shown Below: 3(2x-3y=-27) -3+2y=23 __________ 6x-9y=81 -3x+2y=23 _________ -18x-7y=104 +18 +18 -7y=122 __ ___ -7 -7 y= -17.42 ________________________________________________________________________________ Is that correct? Click here to see answer by JBarnum(2044)

 Question 569855: At a circus, 135 clowns are getting into cars. Blue cars hold 20 clowns and red cars only hold 15. How many of each are there? Click here to see answer by stanbon(57967)

 Question 569921: total of tickets were sold for the school play. They were either adult tickets or student tickets. The number of student tickets sold was three times the number of adult tickets sold . How many adult tickets were sold? Click here to see answer by mananth(12270)

 Question 570017: 0.5x+y=9 1.6x+0.2y=13 Can you show me the steps to solve this using elimination? Click here to see answer by Alan3354(31532)

 Question 569992: List all possible pairs of integers x and y such that the product of x and y equals the sum of x and y. Click here to see answer by ankor@dixie-net.com(15746)

 Question 570841: What is the x-coordinate of this solution? 2x+3y=-27 -3x+2y=23 My Work is Shown Below: 3(2x-3y=-27) -3+2y=23 __________ 6x-9y=81 -3x+2y=23 _________ -18x-7y=104 +18 +18 -7y=122 __ ___ -7 -7 y= -17.42 ________________________________________________________________________________ Is that correct? Click here to see answer by JBarnum(2044)

 Question 571830: How can you use y=43+5x to solve 78=43+5x? Click here to see answer by unlockmath(1614)

 Question 572056: Find the equation of the line in standard form that passes through (-7,5) and is perpendicular to -4x+3y=13. So far I have: -4x+4x+3y=4x+13 3y/3=4x/3+13/3 y=4/3x+13/3. Am I right at all? And if so, where do I go from here? Click here to see answer by Theo(3504)

 Question 572081: Using the equation -3x-y=6, find the slope of the line, the x-intercept of the line and the y-intercept of the line Click here to see answer by nyc_function(2733)

 Question 572618: so im having problems in my algebra class, how would i do an equation like this -> Choose the correct first step(s) to solve the system using elimination. 4x + 7y = 6 and 6x + y = 2 (example problem) 1)7(6x + y = 2) → -42x - 7y = -14 2)4x + 7y = 6x + y 3)y = -6x + 20 → 4x + 7(-6x + 20) = 6 4)(4x + 7y) + (6x + y) = 8 5)(4x + 7y) - (6x + y) = 4 Click here to see answer by scott8148(6628)

 Question 572952: I am so confused on how your supposed to do this type of substitution problem. y=-2x+6 3y-x+3=0 Click here to see answer by mathsmiles(68)

 Question 572964: I am confused on how you go about solving this substitution problem 4y+3=3y+x 2x+4y=18 I started to try doing this problem several different ways but I'm not sure how to solve it. Here's how I attempted to do it. 4y+3=3y+x I started by subtracting ( swinging ) -4y -x -4y -x = x-2=-1y +2 +2 -1/2x -1=y 2x+4=18 2x+4( -1/2x-1)=18 2x+ -2x -4=18 0x-4=18 +4 +4 0x=22 Divide by 0 on each side. X=0 -1/2(0)-1 (0,1) Click here to see answer by mathsmiles(68)
 Question 572964: I am confused on how you go about solving this substitution problem 4y+3=3y+x 2x+4y=18 I started to try doing this problem several different ways but I'm not sure how to solve it. Here's how I attempted to do it. 4y+3=3y+x I started by subtracting ( swinging ) -4y -x -4y -x = x-2=-1y +2 +2 -1/2x -1=y 2x+4=18 2x+4( -1/2x-1)=18 2x+ -2x -4=18 0x-4=18 +4 +4 0x=22 Divide by 0 on each side. X=0 -1/2(0)-1 (0,1) Click here to see answer by solver91311(17077)