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January 30, 2015

January 30, 2015

Posted by **Alexander** on Monday, December 5, 2011 at 2:01pm.

20 log(2x+2)=45

- precalc/trig -
**Steve**, Monday, December 5, 2011 at 3:04pmlog(2x+2) = 45/20 = 2.25

assuming natural logs,

2x+2 = e^2.25

x = (e^2.25 - 2)/2

x = 3.7439

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