Решите пример 3500.2:0.86*(3.2-2.491)-31.635:(2.8*8.6-19.58):80=

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3500.2:0.86(3.2-2.491)-31.635:(2.88.6-19.58):80=

First, we need to calculate inside the parentheses:

3.2 - 2.491 = 0.709

Next, we calculate the numerator of the fraction:

3500.2:0.86*0.709 = 2927.436

Next, we calculate the denominator of the fraction:

2.8*8.6 - 19.58 = 15.88

Next, we divide the numerator by the denominator:

2927.436 / 15.88 = 184.086

Finally, we divide the result by 80:

184.086 / 80 ≈ 2.301

Therefore, 3500.2:0.86(3.2-2.491)-31.635:(2.88.6-19.58):80 ≈ 2.301.