document.write( "Question 482379: As I have said on many occassions Algebra is very confusing to me to say the least...if someone could help me I would be very grateful
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document.write( "Solve by elimination x-7y=62, -x +6y=42 \n" );
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Algebra.Com's Answer #330237 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! Solve by elimination \n" ); document.write( " x - 7y = 62, \n" ); document.write( "-x + 6y = 42 \n" ); document.write( "-------------------adding eliminates x, find y \n" ); document.write( "-y = 104 \n" ); document.write( "y has to be positive, multiply both sides by -1 \n" ); document.write( "y = -104 \n" ); document.write( ": \n" ); document.write( "Find x using the 1st equation, replace y with -104 \n" ); document.write( "x - 7(-104) = 62 \n" ); document.write( "x + 728 = 62 \n" ); document.write( "x = 62 - 728 \n" ); document.write( "x = -666 \n" ); document.write( ": \n" ); document.write( ": \n" ); document.write( "Check solution in the 2nd equation, replace x and y \n" ); document.write( "-(-666) + 6(-104) = 42 \n" ); document.write( "666 - 624 = 42, confirms our solutions of x=-666 and y=-104 \n" ); document.write( " |