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secondary 2 | Maths
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Eleanor
Eleanor

secondary 2 chevron_right Maths chevron_right Singapore

need help

Date Posted: 1 year ago
Views: 179
Eric Nicholas K
Eric Nicholas K
1 year ago
2x - 7y + 1 = 0
x + 2y + 6 = 0

(Do you know why both must be zero?)

x = -2y - 6

Then,
2 (-2y - 6) - 7y + 1 = 0
-4y - 12 - 7y + 1 = 0
-11y - 11 = 0
-11y = 11
y = -1
x = -2 (-1) - 6
x = -4

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Stephen Su Quan Yuan
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