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in Linear Equations by (15.2k points)

Solve x + 5 > 4x – 10, when x ϵ R.

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1 Answer

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by (15.7k points)

x + 5 > 4x – 10 ⇒ 5 + 10 > 4x – x 

⇒ 15 > 3x Divide by 3 

⇒ 5 > x 

⇒ x < 5 

x < 5 means x is from -∞ to 5 that is x ∈ (-∞, 5) 

Hence solution of x + 5 > 4x – 10 is x ∈ (-∞, 5)

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