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Simplifying expressions
Updated: 6/25/2020
Simplifying expressions
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Storyboard Text

  • That's a good question. If there are letters in an expression, known as variables, we have to simplify that expression.
  • Hey John, there's letters in this equation. How do I solve it?
  • First, if there are any parenthesis, we have to multiply the value outside of the parenthesis amongst the values or variables inside the parenthesis. For example, if it says 4(x+6), we would multiply 4 by x then multiply 4 to 6 so that simplifies to 4x+24.
  • How do we do that?
  • For example, if the expression is 4(x+6) + 2(x+5) you'd distribute which would leave you with (4x+24) + (2x+10). Here is where we combine like terms.
  • What happens after that?
  • No you cannot. Like terms is , for example, two values with x, or two values without a variable. {Keep in mind variables do not have to be x they can be any letter}. So, from there you add 2x to 4x then add 24 to 10 which leaves you with a final simplified expression of 6x+34.
  • Before you do that, I have a question, can you add a variable to a normal number?
  • Of course!
  • Thank you so much for your help!
  • The End
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