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Write an algebraic expression for each word expressions

1.the sum of 5 and a number x

  1. 11 decreased by n
  2. The quotient of -9 and y?
  3. Twice a number, minus 13

Verified Answer :

Solving these is quite simple; think of "a number" as a value of either n or x (depending on personal preference) then just find the operations being done based on key words;

  1. Sum= addition so it is x+5
  2. Decrease= subtraction so it is 11-n
  3. Quotient= division so it is -9/y
  4. Twice= multiply by two, minus= subtract, so it is 2n-13

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