document.write( "Question 282798: solve for x and y.\r
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document.write( "1.8x + 1.2y = 4
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document.write( " 9x + 6y = 3\r
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document.write( "i tried to solve this by multiplying the first equation by -5\r
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document.write( "-5(1.8x + 1.2y) = 4(-5)
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document.write( "-9x - 6y = -20\r
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document.write( "subtract the 2nd equation from the 1st\r
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document.write( "-9x - 6y = -20
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document.write( " 9x + 6y = 3\r
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document.write( "I would say that there is no solution to this problem. Is this correct ? \n" );
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Algebra.Com's Answer #205307 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "1.8x + 1.2y = 4 \n" ); document.write( " 9x + 6y = 3 \n" ); document.write( "multiply first by -5 \n" ); document.write( "-9x-6y=-20 \n" ); document.write( " 9x+6y=3 \n" ); document.write( "add both equations \n" ); document.write( "0=-17 \n" ); document.write( "There are no solutions. \n" ); document.write( "They are parallel\r \n" ); document.write( "\n" ); document.write( "-a/b=slope \n" ); document.write( "-1.8/1.2=-3/2 \n" ); document.write( "-9/6=-3/2 \n" ); document.write( "The slopes are the same \n" ); document.write( " \n" ); document.write( " |