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

Tutors Answer Your Questions about Linear-systems (FREE)

Question 752996: how do you write the equation of a line?
(-2,5) slope=-3
equation y-y1=m(x-x1)
Click here to see answer by jim_thompson5910(35256)

Question 753061: 1/12 p = 1/4 p
Click here to see answer by tommyt3rd(5050)

Question 753049: How do you find the y-intercept with a slope and ordered pair?

Click here to see answer by josgarithmetic(39618)

Question 753111: find the SLOPE: between (-3,5) and (-1,-3)
Click here to see answer by lenny460(1073)

Question 753475: Graph linear equation x=-9
Click here to see answer by stanbon(75887)

Question 753647: Simplify
solve for x?
(a) 2x+5=25
Click here to see answer by solver91311(24713)

Question 753656: solve step by step to solve linear equation with 3 variables, can you help me solve this step by step please?
2x-4y-z=17
x+2y-z=0
4x-y-z=6
Click here to see answer by MathLover1(20850)

Question 753712: 3x-2y>2
Click here to see answer by stanbon(75887)

Question 753850: On graph paper, graph the two lines associated with the equations in this system of equations.
3x - 3y = 12
4y - 8x = -16
Determine the solution to the system and check your solution in both equations. Input the solution to the system, putting the solution in ordered pair (x, y) form.
Click here to see answer by Alan3354(69443)

Question 731440: Solve the following system of equations: 5x-2y=8 3x-y=7 thanks!
Click here to see answer by tommyt3rd(5050)

Question 728998: 8x - 10y = -24
-8x + 6y = 40
Click here to see answer by tommyt3rd(5050)

Question 742227: y=2x-2
y=2x+4

Click here to see answer by tommyt3rd(5050)

Question 754214: A girl wants to buy presents for her two friends and wants to spend at least $10 on each friend. She also cannot spend more than $30 total on the presents. Graph the solution region of the system of inequalities.

Click here to see answer by tommyt3rd(5050)

Question 754237: solve equations graphically
question1 2x=3
10x=2y

Click here to see answer by static(2)

Question 754329: 25+15y+2y^2=228
Click here to see answer by vidya pattar(14)

Question 755172: What is the equation for a line, in slope form, that is perpendicular to -x+y=4 that passes through (0,2)?
Click here to see answer by MathLover1(20850)

Question 755414: how to solve 6x-12=-9x+3
Click here to see answer by stanbon(75887)

Question 755509: A line is perpendicular to the line y=2x +3 and has the same x-intercept as x+3y+10=0
Find the equation of this line. Express your answer in the form y=mx+b
Click here to see answer by pragya.ban@gmail.com(32)

Question 755531: (x-2)/3 + (y+1)/5 =
please show steps
Click here to see answer by jim_thompson5910(35256)

Question 755679: Find an equation for each line in the form ax+by=c, where a,b,c are integers with no factor common to all three and a >_0.
Question: Through (2,-5), parallel to 2x-y=-4
Click here to see answer by solver91311(24713)

Question 755962: how can i solve this system of equations using the addition method when one or more of the terms is missing?
4a+9b=8
8a+6c=-1
6b+6c=-1
Click here to see answer by Theo(13342)

Question 755983: What is the solution set of the following equation?
-8x + x + 15 = -7x + 12
�
{1/7}
{all reals}
Click here to see answer by solver91311(24713)

Question 756148: The school is selling tickets. If you wear school colors the tickets cost 6 dollars. If you don't they cost 9 dollars. A total of 240 tickets were sold and a total of 1,800 dollars were raised. Write two equations and graph it. Then solve the system equations using the substitution and elimination methods.
I have equations: money=6a=9t and tickets=a+t
Thanks for trying to help me. I appreciate it!
Click here to see answer by stanbon(75887)

Question 756322: can you tell me how to solve the linear system for:
5x+6y=3
-25x-30y=6
Click here to see answer by Gogonati(855)

Question 756322: can you tell me how to solve the linear system for:
5x+6y=3
-25x-30y=6
Click here to see answer by Edwin McCravy(20056)

Question 756577: The sum of two numbers is 59. If you subtract the smaller number from the larger, the answer is 33. What are the numbers?
Click here to see answer by Alan3354(69443)

Question 756577: The sum of two numbers is 59. If you subtract the smaller number from the larger, the answer is 33. What are the numbers?
Click here to see answer by myidis(1)

Question 756581: The sum of two numbers is 59. If you subtract the small number from the larger, the answer is 33. What are the numbers? PLEASE PROVIDE ME WITH BOTH NUMBERS, thanks you.
Click here to see answer by Alan3354(69443)

Question 756590: Im not sure if this is systems of equations bu
t this is my question 3n2 + 7N =16
Click here to see answer by josgarithmetic(39618)

Question 756645: Last time I asked a question but I typed it wrong and didn't get the answer I wanted. The equation was actually:
x=2y+4
2y-4x=2
Sorry.
Click here to see answer by josgarithmetic(39618)

Question 756919: Two numbers are such that the ratio between them is 3:5. If each is increased by 10, the ratio between the new numbers so formed is 5:7. Find the original numbers.

Click here to see answer by fcabanski(1391)

Question 756917: The perimeter of a rectangle is 13cm. If its length is four 3/5 cm, then find its breadth.
Click here to see answer by Cromlix(4381)

Question 757012: The graph of the system of equations −5x+y=1 and 20x+4y=4 consists of what?
1.two distinct parallel lines
2.one line
3.two lines intersecting where x=1
4.two lines intersecting where y=1
two lines intersecting where y=4
Click here to see answer by Cromlix(4381)

Question 757156: Solve by elimination
2x + 3y =-4
3x-4y=11
Click here to see answer by sachi(548)

Question 757157: X-2y=-5
3x+2y=25
Click here to see answer by sachi(548)

Question 757375: (1) If(2/3)^m=72/243, find m. (2) find the coefficient of x^8 in (x^2+2y/x)^10
Click here to see answer by stanbon(75887)

Question 757469: One of the two digits of two-digit number is three times the other. If we interchange the digits and add the resulting number to the original number, we get 132. Find the number.
Click here to see answer by LearnWithMajor(33)

Question 757468: The sum of two digits of a two-digit number is 13. If the digits are interchanged, and the resulting number
is added to the original number, then we get 143. What is the original number

Click here to see answer by LearnWithMajor(33)

Question 757633: what is the solution of the system? use elimination 3x-4y=-24 x+y=-1
Click here to see answer by MathLover1(20850)

Question 757658: simplify the expression 3(x-y)+4(x+2y)

Click here to see answer by jim_thompson5910(35256)

Question 757690: 1/2x+2/3y=32
1/4x-5/9y=40
solve using the substitution method
Click here to see answer by stanbon(75887)

Question 757721: x^2 = 15x + 16
Click here to see answer by lenny460(1073)

Question 714721: y=x+1
2x+y=10
Click here to see answer by tommyt3rd(5050)

Question 758296: solve the system of equation by graphing.
x+y=7
y-x=7
The solution set of the system of equation is
Click here to see answer by Alan3354(69443)

Question 758525: solve the system by graphing
3x+2y=10
5x-3y=4
Click here to see answer by MathLover1(20850)

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