Posted by ROCKY on Monday, August 1, 2011 at 11:49am.
Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions,state this.
3x+7y=77
2x+7y=42

intermediate algebra  PsyDAG, Monday, August 1, 2011 at 12:00pm
Subtract equation #2 from equation # 1.
5x = 35
You should be able to take it from here.

intermediate algebra  ROCKY, Monday, August 1, 2011 at 12:28pm
I understand where I should what from where plz help me out. It would really be appreciaeted.

intermediate algebra  PsyDAG, Monday, August 1, 2011 at 3:27pm
3x(2x) = 3x+2x = 5x
7y7y = 0
7742 = 35
Therefore 5x + 0 = 35 or 5x = 35
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