document.write( "Question 277284: how to find n in the fomula 180(n-2)/n when the measure of one interior angle is 140. \n" ); document.write( "
Algebra.Com's Answer #201907 by jim_thompson5910(35256)\"\" \"About 
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\"%28180%28n-2%29%29%2Fn=140\" First set the given formula equal to the given interior angle measurement.\r
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\n" ); document.write( "\n" ); document.write( "\"180%28n-2%29=140n\" Multiply both sides by 'n'\r
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\n" ); document.write( "\n" ); document.write( "\"180n-360=140n\" Distribute.\r
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\n" ); document.write( "\n" ); document.write( "\"180n=140n%2B360\" Add \"360\" to both sides.\r
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\n" ); document.write( "\n" ); document.write( "\"180n-140n=360\" Subtract \"140n\" from both sides.\r
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\n" ); document.write( "\n" ); document.write( "\"40n=360\" Combine like terms on the left side.\r
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\n" ); document.write( "\n" ); document.write( "\"n=%28360%29%2F%2840%29\" Divide both sides by \"40\" to isolate \"n\".\r
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\n" ); document.write( "\n" ); document.write( "\"n=9\" Reduce.\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 solution is \"n=9\"
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