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September 20, 2014

September 20, 2014

Posted by **pam** on Saturday, April 17, 2010 at 11:31am.

- college algebra -
**bobpursley**, Saturday, April 17, 2010 at 12:22pmmultipy the upper equation by three, the lower by 8

9r-24s=30

64r+24s=408

add the equations

73r=438

r=6

then go back and substitute and find s.

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