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Solve the following system of equations by substitution. 2x = 6 3x – y = 9
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Asked 5/21/2013 3:25:04 PM
Updated 12/31/2014 8:21:40 PM
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Flagged by SCM [12/31/2014 8:21:35 PM]
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User: Solve the following system of equations by substitution. 2x = 6 3x – y = 9

Weegy: Let 3x - y = 13 be equation 1 and 2x + y = 12 be eqaution two. [ On adding equation 1 and 2 the resultant equation is 5x = 25 therefore, x = 25/5 x = 5. Now putting the value of x in any of the above equations(equtaion 1 or 2) we get the value of y. 3(5) - y = 13 15 - y = 13 Taking y on the right hand side and 13 on the left hand side of the equality the equation becomes y = 2. Therefore, x = 5 and y = 2. ]
joyanansel1226|Points 26|

Question
Asked 5/21/2013 3:25:04 PM
Updated 12/31/2014 8:21:40 PM
1 Answer/Comment
This conversation has been flagged as incorrect.
Flagged by SCM [12/31/2014 8:21:35 PM]
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2x = 6

3x – y = 9

x = 6/2 = 3


3*3 -y = 9

9-9 = y

y= 0 .
Added 12/31/2014 8:21:40 PM
This answer has been confirmed as correct and helpful.
Confirmed by andrewpallarca [1/1/2015 2:18:38 PM]
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Questions asked by the same visitor
What are the coordinates of the vertex of the parabola given by the equation: y = x2 - 2x - 2 ? A. (0, -2) B. (1, -3) C. (4, 6) D. (-2, 6)
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Not Answered
Updated 10/29/2014 2:49:39 AM
1 Answer/Comment
The coordinates of the vertex of the parabola given by the equation: y = x^2 - 2x - 2 is ( 1 , - 3 ) .
y = x^2 - 2x - 2
y = ( x - 1 )^2 - 3
when x = 1 , y = -3 .
Added 10/29/2014 2:49:39 AM
This answer has been confirmed as correct and helpful.
Confirmed by andrewpallarca [10/29/2014 3:00:43 AM], Rated good by andrewpallarca
The equation y = 5x2 + 6 is what kind of equation? A. Linear B. Rational C. Quadratic D. Exponential
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Updated 8/19/2014 1:32:53 AM
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The equation y = 5x^2 + 6 is Quadratic equation.
Added 8/19/2014 1:32:53 AM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [8/19/2014 6:15:56 AM]
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