Posted by **shanquessa** on Tuesday, November 4, 2008 at 1:18pm.

Hi, I am taking Algebra 2 and I need help with some Substitution method problems:

x+12y=68

x=8y-12

x+3y=7

2x-4y=24

3a+b=3

2a-5b=-15

-6=3x-6y

4x=4+5y

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