Simplify: 7

Question

Simplify: $7 a [8a - (11 a - (12 a - \bar{6a - 5a}))]$

Sum

Solution

$7 a [8a - (11 a - (12 a - \bar{6a - 5a}))]$

= 7a - [8a - {11a - (12a - 6a + 5a)}]

= 7a - [8a - {11a - (17a - 6a)}]

= 7a - [8a - {11a - (11a)}]

= 7a - [8a - {11a - 11a}]

= 7a – 8a

= - a

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Q 34 Q 33 Q 35

Chapter 11: Fundamental Concepts (Including Fundamental Operations) - Exercise 11 (F)

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Selina Concise Mathematics [English] Class 7 ICSE

Chapter 11 Fundamental Concepts (Including Fundamental Operations)
Exercise 11 (F) | Q 34

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Simplify: 7"A" "8a" - (11"A" - (12"A" - Bar"6a - 5a")) - Mathematics

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Simplify: 7"A" "8a" - (11"A" - (12"A" - Bar"6a - 5a")) - Mathematics

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