document.write( "Question 45811: solve\r
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document.write( "4x+4y=3
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document.write( "-10+5y=-5x \n" );
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Algebra.Com's Answer #30459 by Fermat(136)![]() ![]() You can put this solution on YOUR website! 4x+4y=3 \n" ); document.write( "-10+5y=-5x \n" ); document.write( "rearrange as follows, \n" ); document.write( "4(x+y) = 3 \n" ); document.write( "5x + 5y = 10 (can you see how the 2nd eqn can be rearranged to give this line?) \n" ); document.write( "then, \n" ); document.write( "x+y = 3/4 (divde the 1st eqn by 4 on both sides) \n" ); document.write( "x+y = 2 (divde the 2nd eqn by 5 on both sides) \n" ); document.write( "Hmmm, \n" ); document.write( "You can't have x+y equal 3/4 and equal 2 at the same time!! \n" ); document.write( "This means that the equations are inconsistent, and have no solution. \n" ); document.write( "You didn't make a typo somewhere ? \n" ); document.write( " |