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March 3, 2015

March 3, 2015

Posted by **math** on Tuesday, January 11, 2011 at 9:30am.

- algebra -
**Reiny**, Tuesday, January 11, 2011 at 11:36am4[(2b+5)/(b+4)]=0

divide both sides by 4

(2b+5)/(b+4)=0

multiply both sides by b+4, b ≠ -4

2b + 5 = 0

b = -5/2

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