Freedom, equality and justice are inter-related because the equality arises only if there is freedom of gender,
freedom for thoughts,etc...
So, freedom and equality are inter-related.
Only if there is a freedom to seek justice, one can seek justice.So, freedom and justice are inter-related.
If there is equality one can ask for justice, otherwise the justice will be for the moneymakers only.

So, all the three are inter-related.

Thank you. 
Hope this will help you.
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