x - y = 6 x = y + 2 Solve the system of equations by substitution. (4, -2) (6, 0) no solution coincident
Question
Updated 11/24/2014 12:56:37 AM
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Flagged by janezeshun [11/24/2014 12:56:37 AM]
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Original conversation
User: x - y = 6 x = y + 2 Solve the system of equations by substitution. (4, -2) (6, 0) no solution coincident

Weegy: A. (4,-2)
mrh2149|Points 30|

User: 10x - 10y = 1 x = y - 3 Solve the system of equations by substitution. (-29/20, 31/20) (1/2, 2/5) no solution coincident

Weegy: Solution: 10x - 10y = 1 x = y - 3 The second equation is solved for x, [ So substitute (y - 3) for x in the first equation 10x - 10y = 1 10(y - 3) - 10y = 1 10y - 30 - 10y = 1 -30 = 1 They y's all canceled out and left a false numerical equation, -30 is not equal to 1, so there is no solution. The system is called an inconsistent system of equation. ]
cutyglyde|Points 461|

User: 5x - 2y = 6 x = 5 - y Solve the system of equations by substitution. (16/7, 19/7) (-4/3, 19/3) no solution coincident

Weegy: (16/7, 19/7) is the answer. Letter A.
nami008|Points 334|

User: x + y = 6 2x + y = 4 Solve the system of equations by substitution. (-2, 8) (2, -8) no solution coincident

Weegy: A.(-2, 8) is the answer if we solve the system by substitution.
nami008|Points 334|

User: 5x - 6 = y 2x - 3y = 4 Solve the system of equations by substitution. (-10/13, -128/13) (14/13, -8/13) no solution coincident

Weegy: (14/13, -8/13) is the answer. Letter B. By substitution, we get the value of x as 14/13 while y is equal to -8/13.
nami008|Points 334|

User: 7x - 2 = 2y 3x = 2y - 1 Solve the system of equations by substitution. (3/4, 13/8) (1/4, -1/8) no solution coincident

Weegy: The system of equations 7x - 2 = 2y 3x = 2y - 1 is equals to: (3/4, 13/8).
emdjay23|Points 17219|

User: 8x = 2y + 5 3x = y + 7 Solve the system of equations by substitution. (-9/2, -41/2) (-1, -9/2) no solution coincident

Weegy: The solution set of the equation 8x = 2y + 5 3x = y + 7 is {(-9/2, -41/2)}.
emdjay23|Points 17219|

User: 8y - 1 = x 3x = 2y Solve the system of equations by substitution. (1/33, 1/11) (1/11, 3/22) no solution coincident

Weegy: The system shown has no solution(s).
sweetash256|Points 70|

User: 7 + 2y = 8x 3x - 2y = 0 Solve the system of equations by substitution. (70/3, 140/9) (7/5, 21/10) no solution coincident

Weegy: Solution: 7 + 2y = 8x 3x - 2y = 0 add 2y to each side 3x = 2y substitute 3x in for 2y in first equation 7 + 3x = 8x subtract 3x from both sides 7 = 5x divide both sides by 5 x = 7/5 substitute 7/5 in for x in second equation 3(7/5) - 2y = 0 add 2y [ to both sides 21/5 = 2y divide both sides by 2 y = 21/10 check work 7 + 2(21/10) = 8(7/5) 70/10 + 42/10 = 56/5 112/10 = 112/10 Answer: B.(7/5, 21/10) ]
cutyglyde|Points 461|

User: Determine if the equations are intersecting, parallel, or coincident. 2x - y = c x + 2y = d Intersecting Parallel Coincident

Question
Updated 11/24/2014 12:56:37 AM
This conversation has been flagged as incorrect.
Flagged by janezeshun [11/24/2014 12:56:37 AM]
Rating
8
There no solution for x - y = 6 , x = y + 2 Solve the system of equations by substitution.
Put equaiton 2 in euqation 1 , we get the result as follows:
x - y = 6 ,
y + 2 - y = 6 ,
2 = 6 ,
2 is can't be equal to 6 ,
So it has no solution .
Confirmed by andrewpallarca [11/24/2014 1:51:38 PM], Rated good by andrewpallarca
8
The solution for 8y - 1 = x , 3x = 2y is (1/11, 3/22) .Solve the system of equations by substitution.
put equation 1 of x = 8y - 1 in equation 2 ;
3(8y - 1) = 2y ;
24y - 3 = 2y ;
22y = 3 ;
y = 3/22 ;
x = 8*3/22 - 1 ;
x = 24/22 - 22/22 ;
x = 2/22 ;
x = 1/11 .
Confirmed by andrewpallarca [11/24/2014 1:52:22 PM], Rated good by andrewpallarca
8
The equations 2x - y = c , x + 2y = d are intersecting .
The slope of 2x - y = c is 2 , the slope of x + 2y = d is -1/2 , so 2 lines are perpendicular to each other ,so they are intersecting .
Confirmed by andrewpallarca [11/24/2014 1:52:41 PM], Rated good by andrewpallarca

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