Solve this system of equations: 2x + 3y = 12 3x - 3y = 3
Question
Updated 1/13/2015 11:35:37 PM
This conversation has been flagged as incorrect.
Flagged by yeswey [1/13/2015 11:34:42 PM]
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Original conversation
User: Solve this system of equations: 2x + 3y = 12 3x - 3y = 3

Weegy: put the squared as 2 expression to make it easier to solve (3x+3y) (3x+3y) (2x + 3y) (9x^2 +6y^2 +18xy) (2x+3y) 18x^3+27x2y+12xy^2+36x^2y+18y^3+54xy^2 answer: 18x^3+63x^2y+66xy^2+18y^3
latefisher|Points 2898|

Question
Updated 1/13/2015 11:35:37 PM
This conversation has been flagged as incorrect.
Flagged by yeswey [1/13/2015 11:34:42 PM]
Rating
8
2x + 3y = 12
3x - 3y = 3
adding up equations the result is:
5x = 15
x = 3,
2(3) + 3y = 12
3y = 12 - 6 = 6
y = 2
The solution for the system 2x + 3y = 12 3x - 3y = 3 is (3, 2)
Confirmed by jeifunk [1/13/2015 11:38:25 PM]

Questions asked by the same visitor
Solve this system of equations: 4x + 6y = 8 3x - y = - 5
Weegy: 3x + y = 1 3x + (6 - 4x) =1 3x + 6 - 4x =1 ............3x - 4x + 6 = 1.......-x + 6 = 1 User: Solve the quadratic equation by the square root property. 4x2 = 28 Weegy: x=Square root 7 (More)
Question
Updated 8/21/2014 9:04:21 PM
The answer for 4x + 6y = 8 ,3x - y = - 5 is x=-16/11, y= 7/11.
3x - y = - 5 ,y=3x+5, put in 4x + 6y = 8
4x+6(3x+5)=8.
4x+18x+30=8
22x=-32
x=-32/22=-16/11.
y=3x+5
=3x(-16/11)+5
=-48/11+5
=7/11.
Confirmed by andrewpallarca [8/22/2014 2:36:42 PM], Rated good by andrewpallarca
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