Solve the Following Equation: (X - 5)(X + 3) = (X - 7)(X + 4) - Mathematics

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Sum

Solve the following equation:

(x - 5)(x + 3) = (x - 7)(x + 4)

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Solution

(x - 5) (x + 3) = (x - 7)(x + 4)

⇒ x2 + 3x - 5x - 15 = x2 + 4x - 7x - 28

⇒ -2x - 15 = - 3x - 28

⇒ 3x - 2x = 15 - 28

⇒ x = -13

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 17 | Page 165

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