# substitution method 3x-y=7 2x-2y=2

How do you find the correct order pair
asked Jun 11, 2013

line 1: 3x-y=7   or y=3x-7

line 2: 2x-2y =2

line2...2x-2*(3x-7)=2

2x-6x+14=2

-4x=2-14=-12

x=12/4=3

y=3x-7=9-7=2
answered Jun 11, 2013 by anonymous

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