Posted by Austin on Tuesday, January 31, 2012 at 10:32pm.
im really confused about this question:
2x3y=21 y=3x
using substitution method. please help

Algerbra 1 substitution method  PsyDAG, Tuesday, January 31, 2012 at 10:46pm
2x  3(3x) = 21
Solve for x, then y. 
Algerbra 1 substitution method  Hunter, Thursday, February 2, 2012 at 6:24pm
2x+y=3
x+2y=0 
Algerbra 1 substitution method  Nadia, Thursday, February 9, 2012 at 7:52pm
X=2 Y=1
(2,1)