SOLUTION: This is my last question that I need an answer for. I tried many times but the answer was wrong. 3x + 2y =8 -x + y = 9 I have to solve using substitution, and can you also tell

Question 1036662: This is my last question that I need an answer for. I tried many times but the answer was wrong.
3x + 2y =8
-x + y = 9
I have to solve using substitution, and can you also tell me why you did what you did
example:
"In order to get this, you must first multiply by 2"
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
(1)
(2)
--------------------
Add to both sides of (2)
(2)
Substitute this result into (1)
(1)
(1)
(1)
(1)
(1)
---------------
Substitute this result into (2)
(2)
(2)
(2)
(2)
----------------
check answers:
(1)
(1)
(1)
(1)
OK
(2)
(2)
(2)
(2)
OK
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