document.write( "Question 1155210: A = 1/2 h(b1 + b2) (solve for b1) \n" ); document.write( "
Algebra.Com's Answer #777750 by Alan3354(69443)\"\" \"About 
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A = 1/2 h(b1 + b2) (solve for b1)
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\n" ); document.write( "Multiply by 2
\n" ); document.write( "2A = h(b1 + b2)
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\n" ); document.write( "Divide by h
\n" ); document.write( "Subtract b1
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