document.write( "Question 215932: Solve.
\n" ); document.write( "23) a + b = s + r for s
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Algebra.Com's Answer #163144 by rfer(16322)\"\" \"About 
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a+b=s+r
\n" ); document.write( "subtract r from both sides
\n" ); document.write( "a+b-r=s
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