document.write( "Question 407346: i have to solve this linear system and write it as a ordered pair. can you help?\r
\n" ); document.write( "\n" ); document.write( "y=2x+7
\n" ); document.write( "3x-y=9 \n" ); document.write( "

Algebra.Com's Answer #287150 by katealdridge(100) $\"\"$ $\"About$

You can put this solution on YOUR website!
Substitute 2x+7 in for y in the 2nd equation
\n" ); document.write( " $\"3x-%282x%2B7%29=9\"$
\n" ); document.write( " $\"3x-2x-7=9\"$ simplify
\n" ); document.write( " $\"x-7=9\"$ combine like terms
\n" ); document.write( " $\"x=16\"$ add 7 to both sides
\n" ); document.write( "Now substitute 16 in for x in either equation:
\n" ); document.write( " $\"y=2%2816%29%2B7\"$
\n" ); document.write( " $\"y=39\"$
\n" ); document.write( "(16,39) \n" ); document.write( "

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