document.write( "Question 77203: A=1/2h(B+b)(for b)area of a trapezoid\r
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\n" ); document.write( "Isolate b on one side of the equals sign
\n" ); document.write( "B and b are 2 different variables. B does no = b
\n" ); document.write( "There is more than 1 correct answer to this question.
\n" ); document.write( "Your answer will be a formula, not a number.\r
\n" ); document.write( "\n" ); document.write( "b=
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Algebra.Com's Answer #55322 by tutorcecilia(2152)\"\" \"About 
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A=1/2h(B+b) [multiply each side by \"2\" in order to cancell \"1/2\"]
\n" ); document.write( "(2)A=(2)(1/2)h(B+b)
\n" ); document.write( "2A=h(B+b)
\n" ); document.write( "(1/h)2A=(1/h)h(B+b) [multiply each side by \"1/h\" in order to cancell the h-term
\n" ); document.write( "(2A)/h -B=B-B+b
\n" ); document.write( "(2A)/h -B=b [subtract the B-term from both sides to cancell the B-term]
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\n" ); document.write( "check by plugging b=(2A/h)-B back into the original equation and solve:
\n" ); document.write( "A=1/2h(B+[(2A/h)-B)[cancel wherever possible]
\n" ); document.write( "A=A [checks out]
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