document.write( "Question 810629: Use substitution to solve
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document.write( "2x - 4y = 14
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document.write( "x = -2y + 7 \n" );
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Algebra.Com's Answer #488280 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Use substitution to solve \n" ); document.write( "2x - 4y = 14 \n" ); document.write( "x = -2y + 7 \n" ); document.write( "--------- \n" ); document.write( "Substitute for \"x\" and solve for \"y\":: \n" ); document.write( "2(-2y+7)-4y = 14 \n" ); document.write( "-4y+14-4y = 14 \n" ); document.write( "-8y = 0 \n" ); document.write( "y = 0 \n" ); document.write( "----- \n" ); document.write( "Solve for \"x\":: \n" ); document.write( "2x -4*0 = 14 \n" ); document.write( "2x = 14 \n" ); document.write( "x = 7 \n" ); document.write( "============ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "============ \n" ); document.write( " |