document.write( "Question 1014202: In parallelogram ABCD, AB=7x+y, BC=15, CD=x+28 and AD=x+y. Find x and y. \n" ); document.write( "

Algebra.Com's Answer #630611 by ikleyn(52803) $\"\"$ $\"About$

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\n" ); document.write( "In parallelogram ABCD, AB=7x+y, BC=15, CD=x+28 and AD=x+y. Find x and y.
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document.write( "AB = CD  --->  7x + y = x + 28. \r\n" );
document.write( "BC = AD  --->  15 = x + y.   \r\n" );
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document.write( "So, you have this system of two equations for x and y:\r\n" );
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document.write( "7x + y = x + 28. \r\n" );
document.write( "15 = x + y.      \r\n" );
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document.write( "Simplify:\r\n" );
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document.write( "6x + y = 28,   (1)\r\n" );
document.write( " x + y = 15.   (2)\r\n" );
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document.write( "To solve it, distract the equation (2) from (1). You will get\r\n" );
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document.write( "5x = 28-15 = 13,\r\n" );
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document.write( "x = .\r\n" );
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document.write( "From this point please complete the solution youself.\r\n" );
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