Thursday, March 12, 2009

Equations in 2 variables

First problem: 4x+3y=10 3y=10-4x Second Problem: (x+1)y=3 y=3 over x+1

Page 351: 13- 2x+y=6 y=6-2x
14-5x+y=7 y=7-5x
15-3x+2y=8 2y=8-3x
16-2x+5y=10 5y=10-2x

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