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March 28, 2015

Homework Help: math

Posted by janie on Thursday, July 12, 2012 at 10:31pm.

a=b+c-2
a=c-d+9
a=b-d+11
Based on the system of equations above, what is the value of a?
a) 2
b) 9
c) 10
d) 11
e) 20

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