document.write( "Question 54481: if 5x - x = 2x + x - 5 then x = \n" ); document.write( "

Algebra.Com's Answer #36731 by tutorcecilia(2152) $\"\"$ $\"About$

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5x - x = 2x + x - 5 [Simplify]
\n" ); document.write( "4x = 3x - 5 [Set the equal equal to zero]
\n" ); document.write( "4x-3x = 3x-3x - 5
\n" ); document.write( "x = -5
\n" ); document.write( ".
\n" ); document.write( "Plug-in (x=-5) into the original equation:
\n" ); document.write( "5x - x = 2x + x - 5
\n" ); document.write( "5(-5) - (-5) = 2(-5) + (-5) - 5
\n" ); document.write( "-25 + 5 = -10 - 5 - 5
\n" ); document.write( "-20 = -20 [Checks out] \n" ); document.write( "

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