document.write( "Question 875557: Please help I have the equation:
\n" ); document.write( "(1/8)*2^(-3r) = 2^(-r)
\n" ); document.write( "I need to solve for r but i do do not know how since I have that \"1/8\" please help me understand why we do each step to solve the problem.
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Algebra.Com's Answer #528281 by ewatrrr(24785)\"\" \"About 
You can put this solution on YOUR website!
\"%281%2F8%292%5E%28-3r%29+=+2%5E%28-r%29\"
\n" ); document.write( "\"%282%5E%28-3%29%292%5E%28-3r%29+=+2%5E%28-r%29\"
\n" ); document.write( "\"+2%5E%28-3r+-+3%29+=+2%5E%28-r%29\"
\n" ); document.write( " -3r-3 = -r
\n" ); document.write( " -3 = 2r
\n" ); document.write( " -3/2 = r
\n" ); document.write( "
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