document.write( "Question 427417: Solve by the elimination method\r
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\n" ); document.write( "\n" ); document.write( "I came up with (9,6) r being 9 and s being 6. Is that correct?
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Algebra.Com's Answer #297242 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!


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document.write( "Hi, Yes! You are exactly corect
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document.write( "Solving by the elimination method 
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document.write( "5r - 8s = -3
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document.write( "8r + 5s = 102 \r
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document.write( "25/8r - 5s = -3*5/8   |multiplying 1st EQ by 5/8
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document.write( " 8r   + 5s = 102 
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document.write( "  89/8 r = -15/8 + 102
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document.write( "    89r  = -15 + 816
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document.write( "    89r = 801
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document.write( "      r = 9   and s = (5r+3)8 = 48/8=6 \n" );
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