document.write( "Question 459793: solve by elimination:
\n" ); document.write( "\"3x%2B5y=-5\"
\n" ); document.write( "\"-6x-10y=-10\"\r
\n" ); document.write( "\n" ); document.write( "thanks \r
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Algebra.Com's Answer #315310 by math-vortex(648)\"\" \"About 
You can put this solution on YOUR website!
solve by elimination:
\n" ); document.write( "\"3x%2B5y=-5\"
\n" ); document.write( "\"-6x-10y=-10\"
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\n" ); document.write( "Multiply each term in the first equation by -2.
\n" ); document.write( "\"-6x-10y=10\"
\n" ); document.write( "\"-6x-10y=-10\"
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\n" ); document.write( "Subtract the second equation from the first.
\n" ); document.write( "\"0%2B0=20\" .\r
\n" ); document.write( "\n" ); document.write( "Hmmm...we notice that both the x- and y-terms have cancelled out. We are left with 0 = 20 which is never true. This tells us that, the system has no solutions.
\n" ); document.write( "Notice that when we multiplied the first equation by -2, we got
\n" ); document.write( "\"-6x-10y=10\"
\n" ); document.write( "\"-6x-10y=-10\"
\n" ); document.write( "x and y have the same coefficients in both equations, so the slopes are the same. However, the y-intercepts are different (10 and -10). These lines are parallel. The lines never intersect, so the system has no solution.
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