Asked by ROCKY

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
Answered by PsyDAG
Subtract equation #2 from equation # 1.

5x = 35

You should be able to take it from here.
Answered by ROCKY
I understand where I should what from where plz help me out. It would really be appreciaeted.
Answered by PsyDAG
3x-(-2x) = 3x+2x = 5x

7y-7y = 0

77-42 = 35

Therefore 5x + 0 = 35 or 5x = 35
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