Question
If 2 - 4x < -6 , what are the possible values for 2x -1?
Answer: Option B
:
B
2−4x<−6
⇒2(1−2x)<−6
⇒(1−2x)<−3 (on division by 2)
⇒(2x−1)>3 (on multiplication with -1), multiplying with a negative number inverts the inequality.
Hence, B is the correct choice
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:
B
2−4x<−6
⇒2(1−2x)<−6
⇒(1−2x)<−3 (on division by 2)
⇒(2x−1)>3 (on multiplication with -1), multiplying with a negative number inverts the inequality.
Hence, B is the correct choice
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