SOLUTION: solve by an method: 12x-6y=-15 -4x+2y=5

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Question 292187: solve by an method:
12x-6y=-15
-4x+2y=5
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
1.12x-6y=-15
2.-4x%2B2y=5
Multiply eq. 2 by 3 and add to eq. 1 to eliminate x.
12x-6y-12x%2B6y=-15%2B15
0=0
Eq. 1 and eq. 2 are the same line.
Multiply eq. 2 by (-3) to get eq. 1.
Consistent dependent system of equations, infinitely many solutions.