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January 25, 2015

January 25, 2015

Posted by **True** on Monday, July 30, 2012 at 9:20pm.

|2x| |y + 7|

|x | = |7 - 3y|

3, -3, 1, or 4

- Algebra 2 (again) -
**MathMate**, Monday, July 30, 2012 at 9:48pmMultiply the second equation by 2 to get the system:

|2x| |y + 7|

|2x| = |14 - 6y|

Equating the right-hand side gives us the TWO equations:

2*(7-3*x)=(x+7)

which can be solved for x, and x=1

or

2*(7-3*x)=-(x+7) which gives x=21/5.

Make an appropriate choice of the solutions.

- Algebra 2 (again) -
**Steve**, Tuesday, July 31, 2012 at 10:47amThese are matrices.

I get y=1

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