PhysChemTutor's answer to help's Secondary 3 A Maths Singapore question.

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PhysChemTutor
Physchemtutor's answer
1551 answers (A Helpful Person)
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help
Help
3 years ago
how did u observe x=4
help
Help
3 years ago
x-4 came from where tho?
PhysChemTutor
PhysChemTutor
3 years ago
2x =8 ..