document.write( "Question 400750: i have a question about my little cosins homework im trying to help him but i keep comig up with the wrong answer can you show me how to do this problem then i can get it from here YOU HAVE TO SOLVE EACH PROBLEM WITH SUBSTITUTION\r
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document.write( "y=6x-11
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document.write( "-2x-3y=-7 \n" );
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Algebra.Com's Answer #283662 by nerdybill(7384)![]() ![]() You can put this solution on YOUR website! y=6x-11 (equation 1) \n" ); document.write( "-2x-3y=-7 (equation 2) \n" ); document.write( ". \n" ); document.write( "Substitute the defintion of 'y' from equation 1 into equation 2: \n" ); document.write( "-2x-3(6x-11)=-7 \n" ); document.write( "-2x-18x+33=-7 \n" ); document.write( "-20x+33=-7 \n" ); document.write( "-20x=-40 \n" ); document.write( "x = 2 \n" ); document.write( ". \n" ); document.write( "Substitute the above definition of 'x' into equation 1: \n" ); document.write( "y=6(2)-11 \n" ); document.write( "y=12-11 \n" ); document.write( "y= 1 \n" ); document.write( ". \n" ); document.write( "Solution: \n" ); document.write( "x=2 \n" ); document.write( "y=1 \n" ); document.write( " |