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2-1+5*4-(5-1)

21+5×4(51)2-1+5\times 4-(5-1)

Full solution

Q. 21+5×4(51)2-1+5\times 4-(5-1)
  1. Handle Multiplication: Step 11: First, handle the multiplication in the expression.\newlineCalculation: 5×4=205 \times 4 = 20.
  2. Simplify Expression: Step 22: Next, simplify the expression inside the parentheses.\newlineCalculation: 51=45 - 1 = 4.
  3. Substitute Results: Step 33: Substitute the results from Steps 11 and 22 into the original expression.\newlineCalculation: 21+2042 - 1 + 20 - 4.
  4. Perform Remaining Operations: Step 44: Perform the remaining operations from left to right.\newlineCalculation: 1+204=171 + 20 - 4 = 17.

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