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lemon-lime2
Mar 6, 2007, 07:06 PM
r=-3s
r=10-4s
solve the systems using substitution

asterisk_man
Mar 6, 2007, 08:46 PM
you've got two equations for r.
substitute the value for r in the first equation for the r in the second equation, solve for s, substitute back into one of the two equations. Done

dumbo4
Mar 26, 2007, 08:02 PM
r=-30
s=10