SG
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Primary 6
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Number and Algebra
Please help with all. Thank you!
Replies
3
JY
Let pencil case be c
Let notebook be n
Let pens be p
1. Write equation of c and n accordingly
2. According to equation, substitute n in to c then substitute p into n.
3. From here you will have equation with only p.
4. Find p
5. From p you can substitute into find c
5 years ago
JY
For double checking, substitute value to see if it adds up