document.write( "Question 157598: Please help me solve the equation 7x-3y=6; x=3 \n" ); document.write( "

Algebra.Com's Answer #116167 by jojo14344(1513) $\"\"$ $\"About$

You can put this solution on YOUR website!
7x-3y=6; x=3
\n" ); document.write( "substitute $\"x=3\"$ :
\n" ); document.write( " $\"7%2A3-3y=6\"$ , transpose
\n" ); document.write( " $\"21-6=3y\"$
\n" ); document.write( " $\"15=3y\"$ --------> $\"cross%2815%293%2Fcross%283%29=cross%283%29y%2Fcross%283%29\"$
\n" ); document.write( " $\"y=5\"$
\n" ); document.write( "check it out when $\"system%28x=3%2Cy=5%29\"$
\n" ); document.write( " $\"%287%2A3%29-%283%2A5%29=6\"$
\n" ); document.write( " $\"21-15=6\"$
\n" ); document.write( " $\"6=6\"$
\n" ); document.write( "Thank you,
\n" ); document.write( "Jojo \n" ); document.write( "

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