document.write( "Question 329528: Please solve the system of equations by the method of your choice:
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document.write( "2x-4y=6 and 4x+y=21\r
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document.write( "Are these equations independent, inconsistent, or dependent? \r
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document.write( "Thank you,
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document.write( "Shelley E. \n" );
document.write( "
Algebra.Com's Answer #236209 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Please solve the system of equations by the method of your choice: \n" ); document.write( "2x-4y=6 \n" ); document.write( "4x+y=21 \n" ); document.write( "Are these equations independent, inconsistent, or dependent? \n" ); document.write( "---------------------- \n" ); document.write( "Multiply the 1st equation by 2: \n" ); document.write( "4x-8y = 12 \n" ); document.write( "4x+y = 21 \n" ); document.write( "---------------- \n" ); document.write( "Subtract the 1st from the 2nd and solve for \"y\": \n" ); document.write( "9y = 9 \n" ); document.write( "y = 1 \n" ); document.write( "--- \n" ); document.write( "Substitute into 2x-4y = 6 to solve for \"x\": \n" ); document.write( "2x-4*1 = 6 \n" ); document.write( "2x = 10 \n" ); document.write( "x = 5 \n" ); document.write( "------------- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "=========== \n" ); document.write( " |