document.write( "Question 763412: B= a + (n-1)d, for d. \n" ); document.write( "
Algebra.Com's Answer #465469 by tommyt3rd(5050)\"\" \"About 
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B= a + (n-1)d\r
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\n" ); document.write( "\n" ); document.write( "B-a=(n-1)d\r
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\n" ); document.write( "\n" ); document.write( "d= (B-a)/(n-1)\r
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