Ong Zixuan's answer to Robert hynds's Primary 6 Maths Algebra United States question.

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Ong Zixuan
Ong Zixuan's answer
6 answers (Tutor Details)
1st
Take note that for number line, black circle means inclusive, and hollow ones means exclusive.
Also take note of the OR and AND.
Lastly, for all the negative that you divide, you have to flip the sign.
Hope this helps!