Solve the Following Equation: ("X"- 8)/5 = ("X" - 12)/9 - Mathematics

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Sum

Solve the following equation:

`("x"- 8)/5 = ("x" - 12)/9`

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Solution

⇒ 9(x - 8) = 5(x - 12) ...(by cross multiplying)

⇒ 9x - 72 = 5x - 60

⇒ 9x - 5x = -60 + 72

⇒ 4x = 12

⇒ x = `12/4`

⇒ x = 3

Concept: Simple Linear Equations in One Variable
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Chapter 14: Linear Equations in one Variable - Exercise 14 (A) [Page 165]

APPEARS IN

Selina Concise Mathematics Class 8 ICSE
Chapter 14 Linear Equations in one Variable
Exercise 14 (A) | Q 7 | Page 165

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