SOLUTION: I am suppose to solve the systems of equations by elimination and I don't understand it. Here is my problem. It says to solve by substitution. x-4y=22 2x+5y=-21

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Question 900832: I am suppose to solve the systems of equations by elimination and I don't understand it. Here is my problem. It says to solve by substitution.
x-4y=22
2x+5y=-21

Answer by richwmiller(17219)   (Show Source): You can put this solution on YOUR website!
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