Posted by William Tolson on Tuesday, October 12, 2010 at 7:26pm.
solve by the substitution method
3x+5y=21
x=519y

Math  Ms. Sue, Tuesday, October 12, 2010 at 7:31pm
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Posted by William Tolson on Tuesday, October 12, 2010 at 7:26pm.
solve by the substitution method
3x+5y=21
x=519y
.