解
The sum of twice a number and 19 is -23
解
解答ステップ
Represent the number with
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展開する the sum of two consecutive numbers is 25The 直径 of a circle is 20 m. Find its area in terms of pipi.Twice the sum of a number and four is twenty less than four times the number. Find the numberA boat traveled at a constant speed for 6 hours, covering a total 距離 of 408.3 kilometers. How fast was it going?number i^{66} as much