document.write( "Question 930414: I would really like it if you help me in the following function notations questions. \r
\n" ); document.write( "\n" ); document.write( "Consider the function f(x)=5–x, Evaluate f(21)\r
\n" ); document.write( "\n" ); document.write( "Consider the function f(x)=3x+5.Evaluate f(2)\r
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\n" ); document.write( "\n" ); document.write( "Consider the function f(x)=5x–1
\n" ); document.write( "Determine the value of x if f(x)=9\r
\n" ); document.write( "\n" ); document.write( "Consider the function f(x)=x+3
\n" ); document.write( "Determine the value of x if f(x)=10\r
\n" ); document.write( "\n" ); document.write( "It would be great if you help me. :) Thanks for your time. I appreciate it! :)
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Algebra.Com's Answer #564970 by algebrahouse.com(1659)\"\" \"About 
You can put this solution on YOUR website!
f(x) = 5 - x
\n" ); document.write( "f(21) = 5 - 21 {substituted 21 for x}
\n" ); document.write( "= -16 {subtracted}\r
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\n" ); document.write( "\n" ); document.write( "f(x) = 3x + 5
\n" ); document.write( "f(2) = 3(2) + 5 {substituted 2 for x}
\n" ); document.write( "= 6 + 5 {multiplied}
\n" ); document.write( "= 11 {added}\r
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\n" ); document.write( "\n" ); document.write( "f(x) = 5x - 1
\n" ); document.write( "If f(x) = 9, then 5x - 1 = 9
\n" ); document.write( "5x - 1 = 9
\n" ); document.write( "5x = 10 {added 1 to each side}
\n" ); document.write( "x = 2 {divided each side by 5}\r
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\n" ); document.write( "\n" ); document.write( "f(x) = x + 3
\n" ); document.write( "If f(x) = 10, then x + 3 = 10
\n" ); document.write( "x + 3 = 10
\n" ); document.write( "x = 7 {subtracted 3 from each side}
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