Book: RD Sharma - Mathematics
Chapter: 15. Linear Inequations
Subject: Maths - Class 11th
Q. No. 7 of Exercise 15.1
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7
Solve the following linear inequations in R
Given 
⇒ 30 – 10x ≥ x + 20
⇒ x + 20 ≤ 30 – 10x
⇒ x + 20 – 20 ≤ 30 – 10x – 20
⇒ x ≤ 10 – 10x
⇒ x + 10x ≤ 10 – 10x + 10x
⇒ 11x ≤ 10
Thus, the solution of the given inequation is
.
