document.write( "Question 452212: solve the system by graphing:
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Algebra.Com's Answer #853373 by ikleyn(53746) $\"\"$ $\"About$

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Graphs/452212: solve the system by graphing:
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\n" ); document.write( "y=2x+13
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\n" ); document.write( "\n" ); document.write( "        My vision is that the instruction \"solve the system by graphing\" looks slightly idiotic\r
\n" ); document.write( "\n" ); document.write( "        as considered to this problem. So, I will solve it in a normal way, i.e. algebraically.\r
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\n" ); document.write( "\n" ); document.write( "        Notice that the post b @mananth does not contain any solution.\r
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document.write( "Left sides of equations are identical - so, their right side equal\r\n" );
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document.write( "    -x - 2 = 2x + 13.\r\n" );
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document.write( "Simply and find x\r\n" );
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document.write( "    -x - 2x = 13 + 2,\r\n" );
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document.write( "      -3x   = 15,\r\n" );
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document.write( "        x   = 15/(-3) = -5.\r\n" );
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document.write( "Hence,  y = -x - 2 = -(-5) - 2 = 5 - 2 = 3.\r\n" );
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document.write( "ANSWER.  The solution is  x = -5, y = 3.\r\n" );
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document.write( "You may substitute these values into equations to assure that they are the correct solutions, \r\n" );
document.write( "i.e. do satisfy equations.\r\n" );
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\n" ); document.write( "\n" ); document.write( "Solved algebraically, i.e. in a normal way.\r
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