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April 19, 2015

April 19, 2015

Posted by **katie** on Thursday, January 13, 2011 at 11:12pm.

x=4y+1

substitution, elemenation

- math -
**Reiny**, Friday, January 14, 2011 at 12:37amin this case, substitution is your obvious choice

sub the 2nd into the 1st.

2(4y+1) - 3y = 12

8y + 2 - 3y = 12

5y = 10

y = 2

sub into the 2nd

x = 4(2) + 1 = 9

x = 9 , y = 2

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