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Simplify: 3x – 6 {3x – 8 (5x – 10)} - Mathematics

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Question

Simplify:

3x – 6 {3x – 8 (5x – 10)}

Sum

Solution

3x – 6 {3x – 8 (5x – 10)}

= 3x – 6 {3x – 40x + 80}

= 3x – 18x + 240x – 480

= 243x – 18x – 480

= 225x – 480

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Concept of Substitution
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Chapter 20: Substitution (Including Use of Brackets as Grouping Symbols) - Revision Exercise

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Selina Mathematics [English] Class 6
Chapter 20 Substitution (Including Use of Brackets as Grouping Symbols)
Revision Exercise | Q 7.4
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