document.write( "Question 751548: find the solution to each system by the addition elimination method 5s+ 9t= 6 4s- 3t= 15 \n" ); document.write( "
Algebra.Com's Answer #457257 by timvanswearingen(106)\"\" \"About 
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Multiply the second equation by 3, the result is:\r
\n" ); document.write( "\n" ); document.write( "\"12s-9t=45\"\r
\n" ); document.write( "\n" ); document.write( "Now line up this equation and the first equation and add them up by adding like terms, the result will be:\r
\n" ); document.write( "\n" ); document.write( "\"17s=51\"\r
\n" ); document.write( "\n" ); document.write( "Divide both sides by 17:\r
\n" ); document.write( "\n" ); document.write( "\"s=3\"\r
\n" ); document.write( "\n" ); document.write( "Now plug in 3 for s, in any equation used in the problem. I'll use the first equation:\r
\n" ); document.write( "\n" ); document.write( "\"5s%2B9t=6\"\r
\n" ); document.write( "\n" ); document.write( "\"5%283%29%2B9t=6\"\r
\n" ); document.write( "\n" ); document.write( "\"15%2B9t=6\"\r
\n" ); document.write( "\n" ); document.write( "Subtract 15:\r
\n" ); document.write( "\n" ); document.write( "\"9t=-9\"\r
\n" ); document.write( "\n" ); document.write( "Divide by 9:\r
\n" ); document.write( "\n" ); document.write( "\"t=+-1\"\r
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