document.write( "Question 295001: If a system has an infinite number of solutions, use set-builder notation to write the solution set. If a system has no solution, state this.\r
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document.write( "Solve using the substitution method.\r
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document.write( "3y + x = 4,
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document.write( "x = 2y - 1 \n" );
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Algebra.Com's Answer #212672 by hmmimstuck(1)![]() ![]() ![]() You can put this solution on YOUR website! Plug the second equation into the first equation: \n" ); document.write( "3y+(2y-1)=4 \n" ); document.write( "5y-1=4 \n" ); document.write( "5y=5 \n" ); document.write( "y=1\r \n" ); document.write( "\n" ); document.write( "Now plug your answer into the second equarion: \n" ); document.write( "x=2(1)-1 \n" ); document.write( "x=2-1 \n" ); document.write( "X=1\r \n" ); document.write( "\n" ); document.write( "To check your work plug both answers into the same equation: \n" ); document.write( "3(1)+(1)=4 \n" ); document.write( "3+1=4 \n" ); document.write( "4=4 \n" ); document.write( " \n" ); document.write( " |