document.write( "Question 889240: angle B is supplementary to angle A which is 42 degrees. Determine m angle B? \n" ); document.write( "
Algebra.Com's Answer #538065 by Fombitz(32388)\"\" \"About 
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Supplementary:
\n" ); document.write( "\"A%2BB=180\"
\n" ); document.write( "\"42%2BB=180\"
\n" ); document.write( "\"B=138\"\"degrees\"
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