document.write( "Question 107975This question is from textbook Algebra, structure and meathod, book 1
\n" ); document.write( ": solve A=1/2(b sub1+ b sub2)h, solve for b sub1 \n" ); document.write( "
Algebra.Com's Answer #78685 by jim_thompson5910(35256)\"\" \"About 
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\"A=%281%2F2%29%28b%5B1%5D%2Bb%5B2%5D%29h\" Start with the given equation\r
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\n" ); document.write( "\n" ); document.write( "\"A%2Fh=%281%2F2%29%28b%5B1%5D%2Bb%5B2%5D%29\" Divide both sides by h\r
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\n" ); document.write( "\n" ); document.write( "\"2A%2Fh=b%5B1%5D%2Bb%5B2%5D\" Multiply both sides by 2\r
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\n" ); document.write( "\n" ); document.write( "\"2A%2Fh-b%5B2%5D=b%5B1%5D\" Subtract \"b%5B2%5D\" from both sides\r
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\n" ); document.write( "\n" ); document.write( "So our answer is \"b%5B1%5D=2A%2Fh-b%5B2%5D\"
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