document.write( "Question 221220: S=(a-rl)/(1-r) solve for l we get l=(a-S-Sr)/r Bagatrix solver tells us the Sr should be positive, what step did we miss or mess up on. \n" ); document.write( "
Algebra.Com's Answer #165979 by RAY100(1637)\"\" \"About 
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S = (a-rl) / (1-r)
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\n" ); document.write( "S*(1-r) = (a-rl)
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\n" ); document.write( "S-Sr = a-rl
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\n" ); document.write( "S-Sr -a = -rl
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\n" ); document.write( "(S-Sr-a) / -r = l
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\n" ); document.write( "(-S+Sr +a)/r = l
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\n" ); document.write( "(a-S+Sr)/r = l
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