Posted by stephanie on Tuesday, August 30, 2011 at 7:24pm.
a + 5 = 11
a - b = 2.
a = 11 - 5 = 6.
6 - b = 2,
b = 6 - 2 = 4.
3c = 12
c/d = 4.
3c = 12,
C = 4.
4/d = 4,
4d = 4,
d = 1.
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