document.write( "Question 172615: S=n/2(A=t) Solve for A\r
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Algebra.Com's Answer #127491 by Mathtut(3670)\"\" \"About 
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lets assume that A=t you have is A-t
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\n" ); document.write( " S=(n/2)(A-t)...multiply both sides by 2
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\n" ); document.write( "2S=n(A-t)...divide by n on both sides
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\n" ); document.write( "2S/n=A-t....now add t to both sides
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