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

Tutors Answer Your Questions about Linear-systems (FREE)

Question 124480: 5x-6y=3
2x=12y=12
Click here to see answer by stanbon(75887)

Question 124486: 1000x+30y=500
x-2y=11
Click here to see answer by jim_thompson5910(35256)

Question 124490:
(2x+3)(5x-7)=(10x+1)(x+6)
Click here to see answer by checkley71(8403)

Question 124545: Write the equation of the line with slope 4/3 and y-intercept (0, 3) in slope-intercept form (y = mx + b).
Click here to see answer by iluvbuilding429(41)

Question 124544: Write the equation of the line through (-2, 3) and parallel to y = 2x - 4 in slope-intercept form (y = mx + b).

Click here to see answer by anne(47)

Question 124593: What line goes through (-9, 0) that has a slope of 3/5? Write your answer in standard form Ax + By = C.

Click here to see answer by checkley71(8403)

Question 124590: Write the equation of the line through (2, 3) and perpendicular to y = -2x +
4 in slope-intercept form (y = mx + b).

Click here to see answer by anne(47)

Question 124595: Identify the ordered pair(s) so that it (they) is (are) not a solution(s) for 7x + 2y = 17:
(0, 2/17)
(1, 17/7)
(0.5, 27/4)
(-2, 31/2)

Click here to see answer by checkley71(8403)

Question 124659:
Given f(x) = x2 + 5x + 2, find f(0).
Click here to see answer by jim_thompson5910(35256)

Question 124655: Solve the system by addition.
4x � 5y = �19
x + 3y = 8

Click here to see answer by jim_thompson5910(35256)

Question 124654: Solve the system by substitution.
x + 5y = 11
�3x � 2y = �7

Click here to see answer by jim_thompson5910(35256)

Question 124657: The sum of two numbers is 38. Their difference is 10. What are the two numbers?

Click here to see answer by jim_thompson5910(35256)

Question 124656: The sum of two numbers is 38. Their difference is 10. What are the two numbers?

Click here to see answer by gems(12)

Question 124658: Rewrite the equation �3x + 9y = �90 as a function of x.

Click here to see answer by MathLover1(20850)

Question 124713: The sum of two numbers is 52. Twice the first number is 17 more than the second. Find the numbers. I just need to know how to set this up.
Click here to see answer by jim_thompson5910(35256)

Question 124731: Your weekly paycheck is 10 percent less than your coworker's. Your two paychecks total 640. Find the amount of each paycheck.
Click here to see answer by bucky(2189)

Question 124732: After robbing a bank in Dodge City, a robber gallops off at 13 mi/h. 20 minutes later, the marshall leaves to pursue the robber at 16 mi/h. how long (in hours) does it take the marshall to catch up to the robber?
Click here to see answer by checkley71(8403)

Question 124770: Write the equation in either slope-intercept form or standard form:
The vertical line through the point(-45,61)
Click here to see answer by solver91311(24713)

Question 124766: Find the slope of the line x=-25?
Click here to see answer by solver91311(24713)

Question 124769: Write the equation in either slope-intercept form or standard form:
The line through the points (0,12) and (5,8)
Click here to see answer by iluvbuilding429(41)

Question 124768: Write the equation in either slope-intercept form or standard form:
The line with the slope m=5, passing through the point (-12,0)
Click here to see answer by iluvbuilding429(41)

Question 124806: Please help me. I need to know how to plugin a problem for Point-Slope equations. Please use this as an example. (3,5), m= -1
Andrew
Click here to see answer by solver91311(24713)

Question 124730: Wilma drove at an average speed of 50 mi/h from her home in City A to visit her sister in City B. She stayed in City B 10 hours, and on the trip back averaged 45 mi/h. She returned home 40 hours after leaving. How many miles is City A from City B
Click here to see answer by ankor@dixie-net.com(22740)

Question 124877: y=4x+11
-6x+8y=36
solving systems by substitution ??????? Help please !!!!!
Click here to see answer by jim_thompson5910(35256)

Question 124876: Solve the following system by substitution
4x-12y=5,
-x+3y= -1
Show your solution below:
What is the solution for this system?
What type of system is this?

Click here to see answer by jim_thompson5910(35256)

Question 124896: solve the system by substitution:
x+2y=-6
2x=-4y-16
Click here to see answer by jim_thompson5910(35256)

Question 124840: x=1-y
y=2x-2
Please show me how to solve this problem. I keep getting stuck at x=1-(2x-2), and can't figure out where to go from here.Thank's for your help.
Click here to see answer by iluvbuilding429(41)

Question 124846: how do you solve ...y=x+1
2x+y=7
Click here to see answer by jim_thompson5910(35256)

Question 125034: solve the following by graphing
2x-y=4
2x-y=6
Click here to see answer by Fombitz(32388)

Question 124765: Find the slope of the line whose equation is 8x+7y=56?
Click here to see answer by ankor@dixie-net.com(22740)

Question 125088:

4x-2y=42 5x+3y=25
Click here to see answer by checkley71(8403)

Question 125135: how do you show the linear graph for y<6 and y>3
Click here to see answer by ilana(307)

Question 125135: how do you show the linear graph for y<6 and y>3
Click here to see answer by MathLover1(20850)

Question 125139: 1. Given f(x) = 4-x-x^2. Find f(3)
2. Find the domain of the function F given by F(x)=x+4/x
3. Solve by substitution: x=4y + 3; 2x + 5y = 6
4. Solve the system of equations: 2x - y =5 and x + 2y = 10. Put the answer in the form of (x,y).
5. Solve the system of equations: y=x+7; 2x +3y = 6. Put the answer in the form of (x,y).
6. Solve the system of equations: 4x - 3y =15; 3x + 5y =4. Put the answer in the form of (x,y).

Click here to see answer by solver91311(24713)

Question 125296: given f(x)=4x-5, find f(1)
Click here to see answer by checkley71(8403)

Question 125295:
write the equation of the line passing through (-3 ,-5) and (3,0)
Click here to see answer by checkley71(8403)

Question 125294: which two equations represent parallel lines
y=2/3x+2
y=- 3/2x -5
y=9x+7
y=9x-2

Click here to see answer by checkley71(8403)

Question 125294: which two equations represent parallel lines
y=2/3x+2
y=- 3/2x -5
y=9x+7
y=9x-2

Click here to see answer by mathobsess(2)

Question 125339: This is from MYMATHLAB Book from school
Find an equation of the line containing the given pair of points. Express your answer in the form x=a, y=b, or y=mx+ b
(-5, -5) and (5,5)
What is an equation of the line?
y=
Simplify your answer
Click here to see answer by stanbon(75887)

Question 125506: Rewrite the equation 4x-6y=-30 as a function of x
Click here to see answer by solver91311(24713)

Question 125670: Write an equation of the line that passes through the point and has the given slope. Write the equation in slope-intercept form (y= mx + b)
(3,4), m = 1/2

Click here to see answer by SoOoDumb(14)

Question 125685: Solve the system by addition
-5x+2y=10
x-3y=11
Click here to see answer by jim_thompson5910(35256)

Question 125686: Solve the system by substitution
2x+2y=0
y=4x+0
Click here to see answer by jim_thompson5910(35256)

Question 125707: One number is 12 more than another. The sum of the smaller number and twice the larger number is 36. Find the larger number
Click here to see answer by solver91311(24713)

Question 125707: One number is 12 more than another. The sum of the smaller number and twice the larger number is 36. Find the larger number
Click here to see answer by MathLover1(20850)

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