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Importance of Brackets

Simplify the ...

Question

Simplify the following expressions:

(15) 210 ÷ [125 – {5 + 3(14 – 9)}]

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Solution

210 ÷ {125 – [5 + 3(14 – 9)]}
= 210 ÷ {125 – [5 + 3 × 5]} (Solving simple brackets first)
= 210 ÷ {125 – [5 + 15]} (Performing multiplication first)
= 210 ÷ {125 – 20} (Solving square brackets)
= 210 ÷ 105 (Solving curly brackets)
= 2

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Importance of Brackets

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