document.write( "Question 999411: If (3,n) is a solution of Ax + 3y= 6 and (n,5) is a solution of 5x + y= 20, what is the value of A **linear equations** \n" ); document.write( "

Algebra.Com's Answer #617176 by Fombitz(32388) $\"\"$ $\"About$

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Substitute with given values,
\n" ); document.write( " $\"A%283%29%2B3%28n%29=6\"$
\n" ); document.write( " $\"3A%2B3n=6\"$
\n" ); document.write( " $\"A%2Bn=2\"$
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( " $\"5%28n%29%2B5=20\"$
\n" ); document.write( " $\"5n%2B5=20\"$
\n" ); document.write( " $\"n%2B1=4\"$
\n" ); document.write( " $\"n=3\"$
\n" ); document.write( "So then,
\n" ); document.write( " $\"A%2B3=2\"$
\n" ); document.write( " $\"A=-1\"$
\n" ); document.write( " \n" ); document.write( "

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