document.write( "Question 1034094: Find a solution -5x+y=-5 -4x+2y=2 \n" ); document.write( "

Algebra.Com's Answer #648732 by ikleyn(52780) $\"\"$ $\"About$

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\n" ); document.write( "Find a solution -5x+y=-5 -4x+2y=2
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document.write( "-5x + y = -5,    (1)    \r\n" );
document.write( "-4x + 2y = 2.    (2)\r\n" );
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document.write( "Apply the Substitution method. \r\n" );
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document.write( "From (1), express y = -5 + 5x and substitute it into equation (2). You will get a single equation for x\r\n" );
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document.write( "-4x + 2*(-5 + 5x) = 2.   (3)\r\n" );
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document.write( "Now simplify and solve it:\r\n" );
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document.write( "-4x -10 + 10x = 2,\r\n" );
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document.write( "6x = 2 + 10,\r\n" );
document.write( "6x = 12.\r\n" );
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document.write( "x =  = 2.\r\n" );
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document.write( "So, you just found the solution x = 2.\r\n" );
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document.write( "Do you know what to do next?  How would you find \"y\"?\r\n" );
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