[{70 + (40 - 22) ÷ 3} ÷ 4] = ?
ATQ, [{70 + (40 - 22) ÷ 3} ÷ 4] = [{70 + 18 ÷ 3} ÷ 4] = [{70 + 6} ÷ 4] = [76 ÷ 4] = 19
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