13-02-2015
Mathematics

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4a - 5 + 2a + 9 =28

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chandislilly chandislilly

13-02-2015

A= 4

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ecumming ecumming

13-02-2015

4a - 5 + 2a + 9 =28
+5 to both sides
4a+2a+9=33
-9 from both sides
6a= 19
divide both sides by 6
a=3.16 repeating

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