Решить сумма трех последовательных натуральных чисел равна 120 найдите эти числа
oksiz72
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30.08.2019 17:00
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1
X + (X+1) + (X+2) = 120
x+x+1+x+2=120
3x+3=120
3x=117 /:3
X=39
1 число = 39
2 число = 40
3 число =41