document.write( "Question 221071: I have been working on a problem using the elimination method. I think I have it right but would someone tell me if it is and if not what I have done wrong. The problem is 5r - 2s = 8
\n" ); document.write( " 2r + 5s = 38
\n" ); document.write( " I do not think there is a solution. \n" ); document.write( "

Algebra.Com's Answer #165861 by stanbon(75887) $\"\"$ $\"About$

You can put this solution on YOUR website!
The problem is
\n" ); document.write( "5r - 2s = 8
\n" ); document.write( "2r + 5s = 38
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\n" ); document.write( "Multiply thru the 1st by 2
\n" ); document.write( "Multiply thru the 2nd by 5
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\n" ); document.write( "10r - 4s = 16
\n" ); document.write( "10r + 25s = 190
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\n" ); document.write( "Subtract the 1st Eq. from the 2nd Eq and solve for \"s\":
\n" ); document.write( "29s = 174
\n" ); document.write( "s = 6
\n" ); document.write( "--------------
\n" ); document.write( "substitute into 5r-2s=8 to solve for \"r\":
\n" ); document.write( "5r -2*6 = 8
\n" ); document.write( "5r = 20
\n" ); document.write( "r = 4
\n" ); document.write( "--------------
\n" ); document.write( "Solution: (4,6)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H. \n" ); document.write( "

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