SOLUTION: use substitution method. If the system has an infinite number of solutions, use set builder notation to writh the solution x+y=-9 x-y=14

SOLUTION: use substitution method. If the system has an infinite number of solutions, use set builder notation to writh the solution x+y=-9 x-y=14

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Question 45913: use substitution method. If the system has an infinite number of solutions, use set builder notation to writh the solution
x+y=-9
x-y=14
Answer by Nate(3500) (Show Source): You can put this solution on YOUR website!

plug:

plug:

(2.5,-11.5)

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