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If = 34x-2 and = x + 6, then find the value of: – - Mathematics

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Question

If = `3/4x - 2` and = x + 6, then find the value of:

Sum

Solution

Given, = `3/4x - 2` and = x + 6

= `3/4 xx 10 - 2 - 4 - 6`

= `30/4 - 12/1`  ......[∵ LCM of 4 and 1 is 4]

= `(30 - 48)/4`

= `(-18)/4`

= `(-9)/2`

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Chapter 10: Algebraic Expressions - Exercise [Page 327]

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NCERT Exemplar Mathematics [English] Class 7
Chapter 10 Algebraic Expressions
Exercise | Q 90. (i) | Page 327

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