document.write( "Question 158117: What is the supplementary of angle f, if angle f is 78 degrees? \n" ); document.write( "
Algebra.Com's Answer #116503 by jim_thompson5910(35256)\"\" \"About 
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Let x=supplementary angle\r
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\n" ); document.write( "\n" ); document.write( "Since x and f are supplementary, this means that the two angles add to 180 like this:\r
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\n" ); document.write( "\n" ); document.write( "\"x%2Bf=180\"\r
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\n" ); document.write( "\n" ); document.write( "\"x%2B78=180\" Plug in \"f=78\"\r
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\n" ); document.write( "\n" ); document.write( "\"x=180-78\" Subtract \"78\" from both sides.\r
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\n" ); document.write( "\n" ); document.write( "\"x=102\" Combine like terms on the right side.\r
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\n" ); document.write( "\n" ); document.write( "So the supplementary of angle f is 102 degrees\r
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\n" ); document.write( "\n" ); document.write( "Note: \r
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\n" ); document.write( "\n" ); document.write( "102+78=180
\n" ); document.write( "180=180
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