SOLUTION: find the solution to the system of equations: x+y=1 and 2x+y=3

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Question 325853: find the solution to the system of equations: x+y=1 and 2x+y=3
Answer by solver91311(16868) About Me  (Show Source):
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Eq 1:

Eq 2:

Multiply Eq 1 by -1

Eq 3:

Add Eq 2 to Eq 3:

Eq 3:



Substitute back into Eq 1





The solution set is


John