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

Tutors Answer Your Questions about Linear-systems (FREE)

Question 625976: Can y= -1 be graphed
Click here to see answer by lenny460(1073)

Question 628609: can you help me solve this. linear system equations by elimination
x + y + z =4
x - y + 2z=1
x - y - 3z = -4
Click here to see answer by Alan3354(69443)

Question 628632: 3x+4y+18
Click here to see answer by Alan3354(69443)

Question 628767: Im having a hard time remembering linear equations. The problem is
-14xeqaul sign -546-148y
Sorry i dont have a equal sign
Click here to see answer by richwmiller(17219)

Question 628720: Solve the system of equations using the elimination method. Enter the answer as an ordered pair.
2x - 3y = 4
5x + 2y = -9

Click here to see answer by meetkisai(17)

Question 629018: Need help. Use the method of substitution to solve the system of linear equations. 2x-y=8 9x-4y=36.
Can you please show work.
Click here to see answer by stanbon(75887)

Question 629059: solve system graphically
3x-y=0
2x-y=-1
Click here to see answer by reviewermath(1029)

Question 629077: Solve the following systems of equations and find all possible solutions as (x,y).

Click here to see answer by meetkisai(17)

Question 629129:
Click here to see answer by caligna1234(2)

Question 629152: The points (5, 3) and (1,−1) are plotted on a sheet of graph paper. The sheet of
graph paper is folded along a line so that the point (5, 3) lands on top of the point (1,−1). What is the equation of the line that represents the fold?

Click here to see answer by ewatrrr(24785)

Question 629226: Find an equation for the line that passes through the points-4,1 and 2, -3 .

Click here to see answer by solver91311(24713)

Question 629246: Solve the following system of equations.
x - 2y = 5
2x - 4y = 10
Thank you!
Click here to see answer by stanbon(75887)

Question 629353: 2
______
x^2-7x-12
the huge ___ is a division sign.
Click here to see answer by Alan3354(69443)

Question 629465: x+4y=14
5x+3y=2
Click here to see answer by reviewermath(1029)

Question 629508: The sum of the digits of a two digit number is 10 . if the number formed by reversing the digit is less than the original number by 36.find the number .

WITH BEST REGARDS .
Click here to see answer by reviewermath(1029)

Question 629518: Solve the inequality 9-x>6x+44
Click here to see answer by reviewermath(1029)

Question 629519: Consider the following equation
8y+11x=-7
find three solution of the equation
Graph the line
Click here to see answer by reviewermath(1029)

Question 629597: 2x + 5=15

Click here to see answer by 55305(86)

Question 629662: Find the x- and y- intercepts for the line -x+4y=4 and then graph the line.
Thanks
Click here to see answer by ewatrrr(24785)

Question 629664: Find the equation of the lines that goes through the given points (2,-4) and (-3,-9). Write the equation in both standard form and slope-intercept form.
Thanks.
Click here to see answer by Alan3354(69443)

Question 629675: Can you please explain how I would solve this linear inequality
5($2.00x) < $60.00
Click here to see answer by richwmiller(17219)

Question 629726: Use the graphing approach to determine whether the system is consistent, the system is inconsistent, or the equations are dependent. If the system is consistent, find the solution set from the graph and check it. (If the system is dependent, enter DEPENDENT. If the system is inconsistent, enter INCONSISTENT.)
1/3x - 1/4y = 5
x + 2y = -7
Click here to see answer by solver91311(24713)

Question 629816: A motel rents double rooms at $35 per day and single rooms at $24 per day. If 24 rooms were rented one day for a total of $730, how many rooms of each kind were rented?
Click here to see answer by solver91311(24713)

Question 629747: can you help me solve 5y+7=4y-5 using the addition property??
Click here to see answer by lenny460(1073)

Question 629858: 3x-2y=6
-6x+4y=-6
Click here to see answer by reviewermath(1029)

Question 629921: -1=5+x Over 6 i dont even know where to start
-1=5+x/6

Click here to see answer by ewatrrr(24785)

Question 630090: If the square of a number increased by the number is 42, then what is the number?
I have x^2+x=42, but I do not know if this is correct and if so, what to do after that
Click here to see answer by Alan3354(69443)

Question 630951: d=76 feet, t=19 seconds
r= ?
Click here to see answer by Alan3354(69443)

Question 630940: Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this.
4x � 8y = 48
11x + 3y = -105.5
Click here to see answer by richwmiller(17219)

Question 630979: Which of the following ordered pairs lies on the graph of h(x) = -2x2?
(1, -4)
(1, -2)
(1, 4)
Click here to see answer by Tatiana_Stebko(1539)

Question 631186: solve and check
-3(4x-4)-12=-3(7x+6)-4
Click here to see answer by jim_thompson5910(35256)

Question 631187: Solve the system of linear equations by graphing
4x+y = 0
3x + y = 2
Please explain how you determine the points to plot on the graph
Click here to see answer by Alan3354(69443)

Question 631199: which of the following is not a solution to the system of linear eqautions below? 5y=3x+15 6x=10y-30

Click here to see answer by jim_thompson5910(35256)

Question 631424: The directions for my homework are...

Solve simultaneously for x and y.

the equation is..
2x+5y=28
x-2y=2
whats y and x?
Click here to see answer by ewatrrr(24785)

Question 631458: Solve the system of linear equations and check any solution algebraically. (If there is no solution, enter NO SOLUTION. If the system is dependent, set z = a and solve for x and y in terms of a.)
2x + 2z = 2
5x + 3y = 3
3y − 4z = 2
Click here to see answer by ewatrrr(24785)

Question 631566: Use the method of substitution to solve the system of linear equations.
2x-y=4
9x-4y=21
The solution is ______.
Please show work!
Thank you
This what I have tried thus far:
2x-y=4
y=2x-4
9x-4y=21
9x-4(2x-4)=21

Click here to see answer by richwmiller(17219)

Question 631779: Gerry is twice Julia's age.Ten years ago,the square of Julia's age was 14 more than Gerry's age.What is the present age of Gerry?
Click here to see answer by stanbon(75887)

Question 631837: The first step to solving the equation 3 (x + 7) = 12x � 51 is to
combine like terms.
add the opposite to both sides.
distribute.
none of the above.
The second step to solving the equation 2x � 7 � (x � 5) = 0 is to
combine like terms.
add the opposite to both sides.
distribute.
divide both sides.
Click here to see answer by ewatrrr(24785)

Question 631895: Solve the system of equations by the Gaussian elimination method. (If the system is dependent, enter a general solution in terms of c1, c2, ... . If there is no solution, enter NO SOLUTION.)

3x − 5y + 2z = 2
x − 3y + 2z = 2
5x − 11y + 6z = 6
(x,y,z) =?
Click here to see answer by ewatrrr(24785)

Question 631881: Find equation in slope-intercept form
Question: through (-8,1), with undefined slope

Click here to see answer by Alan3354(69443)

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