SOLUTION: Solve using the elimination method 5x-4y=10.5 20x-16y=42

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Question 449989: Solve using the elimination method
5x-4y=10.5
20x-16y=42
Answer by rwm(914) About Me  (Show Source):
You can put this solution on YOUR website!
multiply first by 4
20x-16y=42
is the same as the second
20x-16y=42
they are equivalent lines one over the other.
all solutions of one are the solutions of the other.