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A+A= 80B+B=40 C+C=4 A+B÷C=? |
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Answer» A+ A = 80 2A = 80 A = 40 B+ B= 40 2B = 40 B= 20 C+C= 4 2C= 4 C= 2 40+20÷2 = 40+ 10 = 50 |
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