SOLUTION: problem 20 I got wrong. x + 5y =10 -2x -10y =-20 : Solve each of the following systems by addition.If a unique solution does not exist ,state whether the system is incons

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Question 45314: problem 20 I got wrong.

x + 5y =10
-2x -10y =-20
: Solve each of the following systems by addition.If a unique solution does not exist ,state whether the system is inconsistent or dependent.
Answer by fractalier(2101) About Me  (Show Source):
You can put this solution on YOUR website!
If you multiply the top equation by minus two, you go from
x + 5y =10
-2x -10y =-20
to
-2x -10y =-20
-2x -10y =-20
You can see that these are the very same line.
Thus the system is dependent and there ar an infinite number of solutions.