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secondary 2 | Maths
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Date Posted: 2 years ago
Views: 291
x+y = 3(y-x)
x+y = 3y-3x
4x = 2y
y = 2x →①
3x - y = 4 → ②
x+y = 3y-3x
4x = 2y
y = 2x →①
3x - y = 4 → ②
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