document.write( "Question 879926: I need to categorise these into always, sometimes and never and state why. I figured out most of them an I'm stuck with the why part for these:
\n" ); document.write( "q+2=q+16
\n" ); document.write( "2t-3=3-2t
\n" ); document.write( "|x| is greater than or equal to 0
\n" ); document.write( "|x| is greater than or equal to x
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Algebra.Com's Answer #531175 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"q%2B2=q%2B16\"$
\n" ); document.write( "Subtract q from both sides.
\n" ); document.write( " $\"2=16\"$
\n" ); document.write( "Never
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\n" ); document.write( " $\"2t-3=3-2t\"$
\n" ); document.write( " $\"4t=6\"$
\n" ); document.write( " $\"t=3%2F2\"$
\n" ); document.write( "So the original statement is true when t=3/2, so sometimes.
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\n" ); document.write( " $\"abs%28x%29%3E=0\"$
\n" ); document.write( "Always true because that's how absolute value function is defined.
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\n" ); document.write( " $\"abs%28x%29%3E=x\"$
\n" ); document.write( "True, when $\"x%3E=0\"$ , because then $\"x=x\"$ .
\n" ); document.write( "True, when $\"x%3C0\"$ , because $\"x%3E-x\"$ , or dividing both sides by $\"x\"$ , $\"0%3E-1\"$
\n" ); document.write( "So this is true always.
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