document.write( "Question 465320: how to solve a system by elimination?
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Algebra.Com's Answer #318854 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!

 
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document.write( "Hi
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document.write( "solving by elimination
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document.write( "3x - y = 13 
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document.write( "3x + y = 17\r
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document.write( " 3x - y = 13 
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document.write( "-3x - y = -17  |subtracting 2nd EQ from 1st EQ to eliminate x
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document.write( "  -2y = -4
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document.write( "    y = 2  and x = 5   (3x-2=13, 3x = 15, x = 5)
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document.write( "CHECKING our Answer***
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document.write( "3x + y = 17
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document.write( "15 + 2 = 17 \n" );
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