document.write( "Question 607480: What is the answer to solve by the substitution method\r
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document.write( "7x + 7y = 0\r
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document.write( "-2x + y = 6 \n" );
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Algebra.Com's Answer #382743 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! divide first by 7 \n" ); document.write( "y=-x \n" ); document.write( "-2x-x=6 \n" ); document.write( "-3x=6 \n" ); document.write( "x=-2 \n" ); document.write( "y=2 \n" ); document.write( " |