document.write( "Question 59521: Can someone help me here?\r
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document.write( " I need to solve the system by addition or substitution\r
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document.write( " 3x - 4y = 8
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document.write( " 6x - 2y = 10\r
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document.write( "Thanks,
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document.write( " Jamie \n" );
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Algebra.Com's Answer #40776 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! 1st: 3x - 4y = 8 \n" ); document.write( "2nd: 6x - 2y = 10 \n" ); document.write( "------------ \n" ); document.write( "Multiply 1st by 2 to get: \n" ); document.write( "3rd: 6x-8y=16 \n" ); document.write( "-------------- \n" ); document.write( "Subtract 2nd from 3rd to get: \n" ); document.write( "-6y=6 \n" ); document.write( "y=-1 \n" ); document.write( "--------- \n" ); document.write( "Substitute into 1st so solve for \"x\": \n" ); document.write( "3x-4(-1)=8 \n" ); document.write( "3x=4 \n" ); document.write( "x=4/3 \n" ); document.write( "---------- \n" ); document.write( "Solution: \n" ); document.write( "x=4/3; y=-1 \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " \n" ); document.write( " |