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Solve 25-(20-(10-(7-5)))

How to solve 25-(20-(10-(7-5)))? The answer is 13. Read on for stepwise instructions to solve mathematical expressions using the rules of BODMAS or order of operation.

Steps for finding the solution

25 - ( 20 - ( 10 - ( 7 - 5 ) ) )

25 - ( 20 - ( 10 - 2 ) )

25 - ( 20 - 8 )

25 - 12

13

Order of operation

  1. Brackets or Parentheses :- innermost first, left to right
  2. Order or Exponents :- right to left
  3. Division and Multiplication :- left to right
  4. Addition and Subtraction :- left to right

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