document.write( "Question 175139: If three times a number is increased by 5, the result is the same as when 77 is decreased by nine times the number. Find the number.
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Algebra.Com's Answer #130213 by Earlsdon(6294) $\"\"$ $\"About$

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Let n = the number.
\n" ); document.write( " $\"3n%2B5+=+77-9n\"$ Add 9n to both sides.
\n" ); document.write( " $\"12n%2B5+=+77\"$ Subtract 5 from both sides.
\n" ); document.write( " $\"12n+=+72\"$ Divide both sides by 12.
\n" ); document.write( " $\"highlight%28n+=+6%29\"$
\n" ); document.write( "Check:
\n" ); document.write( " $\"3n%2B5+=+77-9n\"$ Substitute n = 6.
\n" ); document.write( " $\"3%286%29%2B5+=+77-9%286%29\"$ Evaluate both sdies.
\n" ); document.write( " $\"18%2B5+=+77-54\"$
\n" ); document.write( " $\"23+=+23\"$ \n" ); document.write( "

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