Tham KY's answer to mahdieh's Junior College 1 H2 Maths question.

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Tham KY
Tham Ky's answer
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Jiayang
Jiayang
7 years ago
I think that's a 20. I had trouble reading also I thought the + sign was a subscript 4 -.-"
mahdieh
Mahdieh
7 years ago
thank youuuu