document.write( "Question 61630: Solve for x and y \r
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document.write( "2/3-2yi=2x+4/5\r
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document.write( "I was doing okay with my homework and then I ran into this one and was lost. Thank you for your help. \n" );
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Algebra.Com's Answer #42585 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! Solve for x and y \n" ); document.write( "2/3 - 2yi = 2x + 4/5: \n" ); document.write( ": \n" ); document.write( "First get rid of the these annoying denominators, mult eq by 15, results: \n" ); document.write( "10 - 30yi = 30x + 12 \n" ); document.write( ": \n" ); document.write( "Solve for x: \n" ); document.write( "10 - 12 - 30yi = 30x \n" ); document.write( "-2 - 30yi = 30x \n" ); document.write( ": \n" ); document.write( "Divide thru by 30 \n" ); document.write( "-2/30 - yi = x \n" ); document.write( "Or \n" ); document.write( "x = -yi - \n" ); document.write( ": \n" ); document.write( ": \n" ); document.write( "Solve for y: \n" ); document.write( "-30yi = 30x + 12 - 10 \n" ); document.write( "-30yi = 30x + 2 \n" ); document.write( ": \n" ); document.write( "We want y to be positive, mult eq by -1: \n" ); document.write( "30yi = - 30x - 2 \n" ); document.write( ": \n" ); document.write( "Divide thru by 30i \n" ); document.write( "y = (-x/i) - (2/30i) \n" ); document.write( "y = \n" ); document.write( " \n" ); document.write( " |