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Find X, Such That: 7/-4 = "X"/8 - Mathematics

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Question

Find x, such that: `7/-4 = "x"/8`

Sum

Solution

`7/-4 = "x"/8`

-4x = 7 × 8

x = `(7 xx 8)/-4 = -7 xx 2 = - 14`

x = - 14

OR

`=> (- 7 xx 2)/(4 xx 2) = "x"/8`

`=> -14/8 = "x"/8`

x = - 14

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Concept for Problem Solving Using Operations on Rational Numbers
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Chapter 2: Rational Numbers - Exercise 2 (A)

APPEARS IN

Selina Concise Mathematics [English] Class 7 ICSE
Chapter 2 Rational Numbers
Exercise 2 (A) | Q 12.2
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