document.write( "Question 1049090: Please help me solve y=-4x
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Algebra.Com's Answer #664650 by ikleyn(52803) $\"\"$ $\"About$

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document.write( "y = -4x,        (1)\r\n" );
document.write( "y =  2x + 3     (2)\r\n" );
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document.write( "Since the left sides of these equations are identical, their right sides are equal.\r\n" );
document.write( "Therefore, you can write this equation\r\n" );
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document.write( "-4x = 2x + 3,\r\n" );
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document.write( "which says that the right sides are equal.\r\n" );
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document.write( "Now you have a single equation in only one unknown \"x\", and you can easily solve it by simplifying\r\n" );
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document.write( "-4x - 2x = 3,\r\n" );
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document.write( "-6x = 3,\r\n" );
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document.write( "x = ,\r\n" );
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document.write( "x = .\r\n" );
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document.write( "So, you just found x. It is x = .\r\n" );
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document.write( "Now you can easily find y from (1): y = -4x =  = 2.\r\n" );
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document.write( "Answer.  x = ,  y = 2.\r\n" );
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