Homework Help: math algebra

Posted by jorge on Thursday, May 3, 2012 at 2:54pm.

Solve the following system using elimination. If a single solution exists, write the solution as an ordered pair. Your answer will be an ordered pair, no solution, or infinitely many solutions.

-a+b=-4
2a-3b=-2

math algebra - PsyDAG, Friday, May 4, 2012 at 12:18pm
Multiply first equation by 2, then add the equations.

-2a+2b=-8
2a-3b=-2

-b = -10

Solve for b then a.

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