Q11 of 21 Page 6

Solve the inequality

Given inequality


⇒




Multiplying the inequality by -2.



⇒ 14 ≥ 7x ≥ -28


⇒ -28 ≤ 7x ≤ 14


Dividing the inequality by 7


⇒ -4 ≤ x ≤ 2


∴ all real numbers x greater than or equal to -4 but less than or equal to 2 are solution of given equality.


x ∈ [-4, 2]

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,


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