document.write( "Question 756372: i need help to understand how to finethe answer to f(x)=3x-7 to find f(3) \n" ); document.write( "
Algebra.Com's Answer #460159 by josmiceli(19441)\"\" \"About 
You can put this solution on YOUR website!
\"+f%28x%29+\" says \" the right side of this equation
\n" ); document.write( "depends only on the value of \"x\"\"
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\n" ); document.write( "And, if you look at the right side, it depends
\n" ); document.write( "only on the value that you choose for \"x\"
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\n" ); document.write( "\"+f%283%29+\" tells you to choose \"+x+=+3+\"
\n" ); document.write( "for the right side, so
\n" ); document.write( "\"+f%283%29+=+3%2A3+-+7+\"
\n" ); document.write( "\"+f%283%29+=+9+-+7+\"
\n" ); document.write( "\"+f%283%29+=+2+\"\r
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