unadultarated
New Member
 Joined
 May 27, 2019
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 15
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 Male
 HSC
 2019
btw answer is 3.
Studying simultaenous equations and I still cant find the naswer to my question.
How do you know which variable x or y in either equation to isolate/ use for the subsitution.
Studying simultaenous equations and I still cant find the naswer to my question.
How do you know which variable x or y in either equation to isolate/ use for the subsitution.
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