Solve the given inequality for real x: 3(x – 1) ≤ 2 (x – 3).

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asked Feb 17, 2018 in Mathematics by sforrest072 (157,439 points) 61 410 942
Solve the given inequality for real x: 3(x – 1) ≤ 2 (x – 3)

1 Answer

+1 vote
answered Feb 17, 2018 by mdsamim (213,225 points) 5 10 15
selected Feb 17, 2018 by sforrest072
 
Best answer

3(x – 1) ≤ 2(x – 3)
⇒ 3x – 3 ≤ 2x – 6
⇒ 3x – 3 + 3 ≤ 2x – 6 + 3
⇒ 3x ≤ 2x – 3
⇒ 3x – 2x ≤ 2x – 3 – 2x
⇒ x ≤ – 3

Thus, all real numbers x, which are less than or equal to –3, are the solutions of the given inequality.
Hence, the solution set of the given inequality is (–∞, –3].

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