document.write( "Question 674125: can you solve
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document.write( "-x-y=-2
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document.write( "4x+5y=16
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document.write( "using subsitution method? \n" );
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Algebra.Com's Answer #419036 by jim_thompson5910(35256)![]() ![]() ![]() You can put this solution on YOUR website! Solve the first equation for y to get\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "-x-y=-2 \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "-y = x-2 \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "y = -x+2\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Then plug this into the first equation\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "4x+5y=16\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "4x+5(-x+2)=16\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "4x-5x+10=16\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Tell me what you get for x when you solve that equation above. Also, tell me what you get for y when you plug the solution for x into y = -x+2 \n" ); document.write( " |