document.write( "Question 547539: Please help me solve this problem.
\n" ); document.write( "f(x) = 2x + 7; find f(3)
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Algebra.Com's Answer #356883 by KMST(5328)\"\" \"About 
You can put this solution on YOUR website!
\"f%28x%29+=+2x+%2B+7\"
\n" ); document.write( "To find \"f%283%29\" we just write 3 instead of x and calculate
\n" ); document.write( "\"f%283%29+=+2%2A3+%2B+7=6%2B7=13\"
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