document.write( "Question 110834: Given f(x)=-x-4, find f(a+1) \n" ); document.write( "
Algebra.Com's Answer #80818 by jim_thompson5910(35256)\"\" \"About 
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\n" ); document.write( "\"f%28x%29=-x-4\" Start with the given function\r
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\n" ); document.write( "\n" ); document.write( "\"f%28a%2B1%29=-%28a%2B1%29-4\" Plug in \"a%2B1\"\r
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\n" ); document.write( "\n" ); document.write( "\"f%28a%2B1%29=-a-1-4\" Distribute the negative\r
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\n" ); document.write( "\n" ); document.write( "\"f%28a%2B1%29=-a-5\" Simplify\r
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\n" ); document.write( "\n" ); document.write( "So \"f%28a%2B1%29=-a-5\"
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