document.write( "Question 604612: Determine whether the given pair is a solution of equations. Remember to use alphabetical ordered variables. \r
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document.write( "(1,9) 7x-y=-2
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document.write( " 3x-7y=-60 \n" );
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Algebra.Com's Answer #381297 by jim_thompson5910(35256)![]() ![]() ![]() You can put this solution on YOUR website! Take the first equation, 7x-y=-2, plug in x = 1 and y = 9 to get\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "7x-y=-2\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "7(1)-(9)=-2\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "From here, simplify and evaluate. If the end result is true (something like 1=1), then the ordered pair satisfies the first equation.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Rinse and repeat but do so for the second equation. Plug in x = 1 and y = 9 into the second equation and see if a true equation results. \r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "If BOTH equations are satisfied, then (1,9) is indeed a solution. \n" ); document.write( "If either equation (or both) are NOT satisfied, then (1,9) is NOT a solution \n" ); document.write( " |