document.write( "Question 512729: x=3-3y
\n" ); document.write( "x+3y=-6 \n" ); document.write( "

Algebra.Com's Answer #342715 by oberobic(2304) $\"\"$ $\"About$

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x = 3-3y
\n" ); document.write( "x +3y = -6
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\n" ); document.write( "rearrange the first equation
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\n" ); document.write( "x + 3y = 3
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\n" ); document.write( "Hmmm. That's doesn't sound right.
\n" ); document.write( "x + 3y = 3
\n" ); document.write( "and
\n" ); document.write( "x + 3y = -6
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\n" ); document.write( "Subtract the two equations and you'll find 0 = 9.
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\n" ); document.write( "But, we can look at these in slope-intercept form.
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\n" ); document.write( "x = 3-3y
\n" ); document.write( "3y +x = 3
\n" ); document.write( "3y = -x +3
\n" ); document.write( "y = -1/3x +1
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\n" ); document.write( "x +3y = -6
\n" ); document.write( "3y = -x -6
\n" ); document.write( "y = -1/3x -2
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\n" ); document.write( "Aha! They're parallel lines, so there is no intersection.
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