document.write( "Question 297678: what does 3x+12 equal \n" ); document.write( "

Algebra.Com's Answer #214325 by Fombitz(32388) $\"\"$ $\"About$

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$\"3x%2B12\"$ is an expression.
\n" ); document.write( "Its value depends on the value of x.
\n" ); document.write( "As examples,
\n" ); document.write( "if $\"x=0\"$ , then $\"3x%2B12=3%280%29%2B12=12\"$
\n" ); document.write( "if $\"x=-4\"$ , then $\"3x%2B12=3%28-4%29%2B12=0\"$ \n" ); document.write( "

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