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

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Question 222055: Line L has a slope of 3 and goes through (0,1/8). Find the equation of line L and write it in standard from with integrall coefficients.
Click here to see answer by solver91311(17077)

Question 222121: Find the slope of the line that passes through the points (-9, -9) and (4, -1)
Click here to see answer by checkley77(12569)

Question 222122: Find the x-intercept and y-intercept of the graph of the following equation.
-3x + y = 12

Click here to see answer by rfer(12731)

Question 222157:
I am lost please help
Solve the following equation set by substitution showing work:
3x – y = 5
-6x + 2y = 1

Click here to see answer by scott8148(6628)

Question 222143: Solve the following equation set by substitution showing work:
3x – y = 5
-6x + 2y = 1

Click here to see answer by scott8148(6628)

Question 222199: -2 x - 2 y =5
8 x+ 8 y=-20
Having a hard time with these. thanks for all help!
Click here to see answer by stanbon(57984)

Question 222215: 1/2x+ (-1/2)y=1/2
(-1/3)x+(-3/4)y=2
I divided everything by 1/2 and you get x-y=1 for the first equation.
the second equation i times everything by 12 and get (-4)x + (-9)y = 24
multiply the first equation by -9, so we get -9x +9y = -9.
(-9)x + (9)y = -9
(-4)x + (-9)y = 24
I get (-15/13, -28/13)
But it is wrong, what did i do wrong? Thanks for the help!
Click here to see answer by stanbon(57984)

Question 222162: Find the slope and y-intercept for the line given below showing all wotk:
-4x + 2y = 10

Click here to see answer by rfer(12731)

Question 222162: Find the slope and y-intercept for the line given below showing all wotk:
-4x + 2y = 10

Click here to see answer by MathTherapy(1484)

Question 222186: Solve the system by the addition method showing all work:
(1/6)x + (1/4)y = -2
x – y = -6

Click here to see answer by ankor@dixie-net.com(15747)

Question 222456: 3x-2y=10
x-y=-4
What is the intersecting coordinates?
Here is what I figured:
3x-2y=10
-3x -3x
-2y/-2=-3x/-2 +10/-2
y= 3/2x-5
x-y=-4
-x -x
-y/y= x + 4
Coordinate is (2,-2)
My teacher marked this wrong
Click here to see answer by jim_thompson5910(28717)

Question 222579: the two congruent angles of an isoseles triangle measure (2x-20)degrees each. The third angle measures x degrees. What is the measure of each angle?
Click here to see answer by rfer(12731)

Question 222592: 5.7m+2.25=19.35
Click here to see answer by drj(1380)

Question 222598: Write the equation in the slope-intercept form and then find the slope m and y-intercept b of the corresponding line.
-8x + 6y - 5 = -7
Click here to see answer by Alan3354(31538)

Question 222598: Write the equation in the slope-intercept form and then find the slope m and y-intercept b of the corresponding line.
-8x + 6y - 5 = -7
Click here to see answer by drj(1380)

Question 222587: find two consecutive integers whose sum is -97
Click here to see answer by rfer(12731)

Question 222589: what is the answer of s over 18=16
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Question 222589: what is the answer of s over 18=16
Click here to see answer by checkley77(12569)

Question 222589: what is the answer of s over 18=16
Click here to see answer by rfer(12731)

Question 222584: the three angles of a triangle are (x+20),(x), and (x-50)degrees. Find the measure of each angle.
Click here to see answer by checkley77(12569)

Question 222783: "Solve each system of equations:"

y=2x+14
y=-6x+18

Please help me!
Thank You

Click here to see answer by drj(1380)

Question 222770: find FOUR consecutive integers whose sum is 50
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Question 222760: find THREE consecutive even integers whose sum is -30
Click here to see answer by Alan3354(31538)

Question 222826: Hello, Please help me with this quesion...
"Solve each system of equalities"
{2x+y=8
-x+3y=10
I would appreciate it,
Thanks
Click here to see answer by drj(1380)

Question 222849: How do you solve this?
3(x-2)-2x=x+5
I got -6=5 which mean no solution. Is that correct?
Click here to see answer by drj(1380)

Question 222847: (x/2)-3=(x/3)-2
Solve equation. I got x=5, Is that correct?
Click here to see answer by rapaljer(4667)

Question 222851: How do you sove this equation?
absolute value (7x-4)-4=-11
Click here to see answer by jim_thompson5910(28717)

Question 222851: How do you sove this equation?
absolute value (7x-4)-4=-11
Click here to see answer by rapaljer(4667)

Question 222854: How do you solve this equation?
absolute value |4(1-x)|=|2(-x-3)|
Click here to see answer by stanbon(57984)

Question 222904: my paper tells me to solve the system
-3y+x=6
6Y-5x=12
i tried and i got (0,2)
but i got stuck and i dont know for sure.
Click here to see answer by stanbon(57984)

Question 222904: my paper tells me to solve the system
-3y+x=6
6Y-5x=12
i tried and i got (0,2)
but i got stuck and i dont know for sure.
Click here to see answer by solver91311(17077)

Question 222765: 3(x+3)-6x-8=-4
Click here to see answer by edjones(7569)

Question 222754: find two consecutive odd integers whose sum is 140
Click here to see answer by chibisan(131)

Question 222604: Find the equation of the line that satisfies the given condition.
The line passing through the origin and parallel to the line passing through the points (-5, -6) and (1, -2)
Click here to see answer by ankor@dixie-net.com(15747)

Question 222939: solve the system of equations
4x + 5y = -41
3x - 2y = 21
Click here to see answer by jim_thompson5910(28717)

Question 223025: The problem isn't explaining it enough for me to understand here's the question
Solve the following system of equations by any method you wish
X + y = 6
Y = 2x – 3

Click here to see answer by drj(1380)

Question 223038: please help me solve using multiplication princicple 8x=-72
Click here to see answer by rfer(12731)

Question 223040: please help me collect like terms 16a+3b-13a-9a= ?
Click here to see answer by rfer(12731)

Question 222992: I was asked to solve the systems of linear equations by using the subtraction method... ok Im lost on these!
1.) x=y-2
x+3y=2
2.) x=4y-3
2x-3y=0
3.) y= 2x-9
3x-y=2
4.) 3x+4y=7
x=3-2y
Click here to see answer by jsmallt9(3296)

Question 223052: please help me solve using subsititution method
7x+5y=10
x=31-4y
*solution is ordered pair*
Click here to see answer by rfer(12731)

Question 223159: Two angles are complementary angles if the sum of their masures is 90 degrees. Findtwo complementary angles such that one of the angles is 154 degrees lest than 3 times the oter angle.(Round two decimal place if necessary)
Click here to see answer by checkley77(12569)

Question 223201: the problem says solve each system of equations by substitution.
-3x+y=-4
-2x+3y=9
Click here to see answer by jim_thompson5910(28717)

Question 223232: 9x-5(3x-12)=30
Click here to see answer by rfer(12731)

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