SOLUTION: How do you solve x-2y=5 2x-y=16 using either the substitution or addition method

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Question 841144: How do you solve x-2y=5 2x-y=16 using either the substitution or addition method
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
(1) +x+-+2y+=+5+
(2) +2x+-+y+=+16+
Multiply both sides of (1) by
+-2+ and add the equations
(2) +2x+-+y+=+16+
(1) +-2x+%2B+4y+=+-10+
+3y+=+6+
+y+=+2+
and
(1) +x+-+2y+=+5+
(1) +x+-+2%2A2+=+5+
(1) +x+=+9+