SOLUTION: -9+|1/2a|=7

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Question 790370: -9+|1/2a|=7
Answer by waynest(281) About Me  (Show Source):
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-9 + |1/2a| = 7
- 9 + 9 + |1/2a| = 7 + 9
|1/2a| = 16
1/2a = 16
2(1/2a) = 2(16)
a = 32
check:
-9 + |1/2(32)| = 7
-9 + |16| = 7
-9 + 16 = 7
7 = 7