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In Mathematics / High School | 2025-07-08

Evaluate the expression: 20 - [5 × (7 + 2) ÷ 3].

Asked by mikkymau2496

Answer (1)

To evaluate the expression 20 − [ 5 × ( 7 + 2 ) ÷ 3 ] , we will follow the order of operations, often remembered by the acronym PEMDAS: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

Parentheses

Start by solving the expression inside the parentheses: 7 + 2 = 9 .


Multiplication

Next, perform the multiplication: 5 × 9 = 45 .


Division

Divide the result by 3: 45 ÷ 3 = 15 .


Subtraction

Finally, subtract the result from 20: 20 − 15 = 5 .



Thus, the value of the expression is 5 .

Answered by LucasMatthewHarris | 2025-07-21