document.write( "Question 151514: (a)
\n" ); document.write( "An angle measures 42. What is the measure of its supplement?
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Algebra.Com's Answer #111380 by jim_thompson5910(35256)\"\" \"About 
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Let x=measure of supplement angle\r
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\n" ); document.write( "\n" ); document.write( "Supplemental angles add up to 180 degrees. So that means that \"42%2Bx=180\"\r
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\n" ); document.write( "\n" ); document.write( "\"42%2Bx=180\" Start with the given equation.\r
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\n" ); document.write( "\n" ); document.write( "\"x=180-42\" Subtract \"42\" from both sides.\r
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\n" ); document.write( "\n" ); document.write( "\"x=138\" Combine like terms on the right side.\r
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\n" ); document.write( "\n" ); document.write( "Answer:\r
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\n" ); document.write( "\n" ); document.write( "So the answer is \"x=138\" which means that the measure of the supplement angle is 138 degrees
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