Simplifying Expressions

Simplifying Expressions

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  • Well, what's the question, Bob?
  • Hey Doc, I need to ask you a question for math.
  • Ok I'll do everything step by step on my chalkboard in my office.
  • Do you know how to simplify the expression: –17 – t – (t + 3) 
  • –17 – t – (t + 3)  -3                               -3 -20  - t - t                    -20  -2t                             
  • You subtract 3 from (t +3) and also subtract it from -17 so then the three is gone and -17 turns into -20....
  • So to explain what I did will be on the TV. 
  • And then you have -t - t which is basically  - t + (-t) which is -2t, and so then you put the -2t and -20 into an expression which would be -20 - 2t. 
  • FIN
  • Thanks, Doc I'm going to leave now.
  • No Problem, Bob.
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