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Clearnote
Q&A
Junior High
Mathematics
求答案，主要求解，請各位幫忙(Q21🙏
Mathematics
Junior High
over 6 yearsago
訪客
求答案，主要求解，請各位幫忙(Q21🙏
恆等式
Answers
adam
over 6 yearsago
A=9
B=AX+2A-9-9X
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