Question

18+1/3×18+19+1/4×28=5.5×x​

Answer 1

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$warning = calc. \: probs \: maybe \: there \\ \\ = 18 \times \frac{1}{3} \times 18 +19 \times \frac{1}{4} \\ = \frac{55}{3} \times 18 + \frac{77}{4} \\ = 55 \times 3 + \frac{77}{2} \\ =165 + \frac{77}{2} \\ = \frac{165 + 77}{2} \\ = \frac{242}{2} \\ = 121$

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