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How Do You Rewrite Subtraction as Addition?

Skill: Rewriting subtraction as addition

Summary

  1. 'a' and 'b' are variables
  2. Change the subtraction sign to an addition sign
  3. Positive 'b' becomes negative 'b'
  4. You can do this to any kind of subtraction, you just turn the - into a + and then just flip the sign on the next term!
  5. This time, we change negative 'b' to positive 'b'

Notes

    1. 'a' and 'b' are variables
    1. 'a' and 'b' are variables
    1. Minus becomes plus, and 'b' becomes '-b'
    1. 'b' is a variable
    1. A minus sign becomes a plus sign
    1. Since the next term is negative this time, it flips to become positive
    2. -b becomes b