Algebra.Com's Answer #651820 by ikleyn(52787)![\"\"](\"/images/stars/stars-13.gif\")  
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document.write( "The solution of the following linear system is (13/5 , 1/5). Solve for the values of A and B. Show your work.
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document.write( "Ax+By=15
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document.write( "Bx-Ay=25 \r
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document.write( "Thanks!
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document.write( "1. Substitute (plug-in)  instead of x and  instead of y. Uoi will get\r\n" );
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document.write( "  +  = 15, (1)\r\n" );
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document.write( "  -  = 25. (2)\r\n" );
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document.write( " They want you solve this system for A and B.\r\n" );
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document.write( "2. Multiply the eqns (1) and (2) by 5 (both sides) to rid of denominators.\r\n" );
document.write( " Write the system in the canonical form. You will get\r\n" );
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document.write( " 13A + B = 75, (1')\r\n" );
document.write( " -A + 13B = 125. (2')\r\n" );
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document.write( "3. Now solve it. You can apply the substitution method by expressing A = 13b - 125 from (2') and substituting it into eqn (1).\r\n" );
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document.write( "From this point please complete the solution on your own.\r\n" );
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