Thursday, March 12, 2009

Equations in two variables

4x+3y=10
-4x -4x
3y=6x y=2x
3

(x+1)y=3
x+1

y=3/x+1

14.5x+y=7
-5x -5x
y=7-5x

15.3x+2y=8
-3x -3x
2y=8-3x

16.2x+5y=10
-2x -2x
5y=10-2xd
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