D) If x=19, then 2x-3=35
A) If x > 0, then lxl >0,
L.H.S. X > 0,
R.H.S. Lxl >0 ⇒ ± x > 0
⇒ L.H.S. ≠ R.H.S.
You are watching: Which conditional and its converse form a true biconditional
B) If x = 3 climate
L.H.S. X = 3,
R.H.S. ⇒ x = ± 3
⇒ L.H.S. ≠ R.H.S.
C) If , then x=2
L.H.S. ⇒ x = ± 2,
R.H.S. X = 2,
L.H.S. ≠ R.H.S.
D) If x=19, climate 2x-3=35
L.H.S. X = 19,
R.H.S. 2x-3=35 ⇒ 2x = 38 ⇒ x = 19
⇒ L.H.S. = R.H.S.
⇒ choice D is correct.
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