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You can put this solution on YOUR website!
\n" ); document.write( "(9z) + (x) + (-5) - (9z) + (2)
\n" ); document.write( "Combine like terms -- terms that are the same kind of things, based on the variables in each term.
\n" ); document.write( "Compare it to this:
\n" ); document.write( "(9 apples) + (1 orange) + (-$5) - (9 apples) + ($2)
\n" ); document.write( "You would obviously combine the apples and combine the oranges and combine the dollar amounts; but you wouldn't combine apples and oranges. You started with 9 apples but then took away 9 apples, so you are left with no apples; the -$5 and +$2 combine to give you -$3. So
\n" ); document.write( "(9 apples) + (1 orange) + (-$5) - (9 apples) + ($2) = (1 orange) + (-$3)
\n" ); document.write( "In the same way,
\n" ); document.write( "(9z) + (x) + (-5) - (9z) + (2) = (0z)+(x)+(-3) x-3
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