Is it bad practice to use ⇒ in places where ⇔ is more appropriate?(adsbygoogle = window.adsbygoogle || []).push({});

In textbooks I often see things like:

##3x + 2 = 6##

##⇒ 3x = 4##

##⇒x = \frac{4}{3}##

Isn't the us of "if" here technically wrong, since the reverse statements are also implied?

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# If and only if

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