SOLUTION: solve by the substitution method. {s - 2t =1} {-2s + 4t = -2} its all one problem, on my paper theres only one of thoes brackets,both equations are inside it. show work pleas

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Question 374552: solve by the substitution method.
{s - 2t =1}
{-2s + 4t = -2}
its all one problem, on my paper theres only one of thoes brackets,both equations are inside it.
show work please and thank you.

Answer by Alan3354(69443)   (Show Source): You can put this solution on YOUR website!
The 2nd eqn is -2 times the 1st
--> dependent, infinite # of solutions, no unique solution.

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