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secondary 2 | Maths
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Thea
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secondary 2 chevron_right Maths chevron_right Singapore

How to find x and y .thanks

Date Posted: 3 years ago
Views: 181
Boy Mow Chau
Boy Mow Chau
3 years ago
normally, the way to do this type of question is to substitute like A= (1/x), B = (1/y), then your equations transform to ...
4A + 15B = 15 ............ (1)
(4/5)A - 6B = 3 ............ (2)
which can be solved using any of the methods for simultaneous linear equations.

after you find A & B, then x = (1/A), y = (1/B).

for the 2 equations here, you need to re-check the original question again. based on the numbers you have written, it gives ...
A = (15/4), B = 0, which means
x = (4/15), y = undefined (because of division by 0).

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Siow Lin Hoe
Siow Lin Hoe's answer
658 answers (Tutor Details)
1st
Basically there is no solution for this question. These two equation do not intersect each other.