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secondary 4 | A Maths
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Isabella
Isabella

secondary 4 chevron_right A Maths

PLz solve this equation by Elimination

Date Posted: 6 years ago
Views: 264

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Nicholas Mak
Nicholas Mak's answer
16 answers (A Helpful Person)
1st
With 3 unknowns, you need to eliminate one first (z) before using your usual elimination method to find 2 unknowns (x and y in this case). Once x and y is found, use them to find z