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6x+3y=-12

6x+2y=-4

 Jan 15, 2016
edited by Guest  Jan 15, 2016
edited by Guest  Jan 15, 2016
edited by Guest  Jan 15, 2016

Best Answer 

 #3
avatar
+5

Omi67:

 

Your answers DO NOT balance the equations!!.

 Jan 15, 2016
 #1
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+5

6x+3y=-12

6x+2y=-4

 

Solve the following system:
{6 x+3 y = -12 |     (equation 1)
6 x+2 y = -4 |     (equation 2)
Subtract equation 1 from equation 2:
{6 x+3 y = -12 |     (equation 1)
0 x-y = 8 |     (equation 2)
Divide equation 1 by 3:
{2 x+y = -4 |     (equation 1)
0 x-y = 8 |     (equation 2)
Multiply equation 2 by -1:
{2 x+y = -4 |     (equation 1)
0 x+y = -8 |     (equation 2)
Subtract equation 2 from equation 1:
{2 x+0 y = 4 |     (equation 1)
0 x+y = -8 |     (equation 2)
Divide equation 1 by 2:
{x+0 y = 2 |     (equation 1)
0 x+y = -8 |     (equation 2)
Collect results:
Answer: | x = 2     and       y=-8
 

 Jan 15, 2016
 #2
avatar+12530 
0

Hallo guest

laugh

 Jan 15, 2016
 #3
avatar
+5
Best Answer

Omi67:

 

Your answers DO NOT balance the equations!!.

Guest Jan 15, 2016
 #4
avatar+8581 
0

It's Jc!? :D

 Jan 15, 2016
 #5
avatar+12530 
+5

Sorry

 

sad

 Jan 15, 2016
 #6
avatar+4084 
0

Wait! It was jc and we missed him?!?!?!!!!!!!!?!?!?

 Jan 15, 2016
 #7
avatar+8581 
0

Noo! JC!! :(

 Jan 15, 2016

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