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(1/27)x+2+1=(1/3)x-3+1

 Dec 1, 2016
 #1
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\(\color{blue}{\begin{array}{rll}(\dfrac{1}{27})^{x+2}+1&=&(\dfrac{1}{3})^{x-3}+1\\ (3^{-3})^{x+2}&=&(3^{-1})^{x-3}\\ 3^{-3x-6}&=&3^{3-x}\\ -3x - 6&=& 3-x\\ -2x&=&9\\ x&=&-\dfrac{9}{2}\end{array}}\)

#BlackLaTeXIsBoring.

 Dec 1, 2016
 #2
avatar+14985 
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(1/27) x+2 +1=(1/3) x-3 +1

(Headline of the task)

 

\(\frac{1}{27}x+2+1=\frac{1}{3}x-3+1\)

 

\((\frac{1}{3}-\frac{1}{27})x=2+1+3-1\)

 

\(\frac{8}{27}x=5\)

 

\(x=\frac{5\times 27}{8}\)

 

\(x=16\frac{7}{8}\)    laugh  !

 Dec 1, 2016
edited by asinus  Dec 1, 2016

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