9-3x5/1x(1x7/3+2,5)/2x7/1

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вопрос

To solve this expression, we follow the order of operations which is Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

First, let's simplify the expression inside the parentheses:
1x7 = 7
7/3 = 2.33
2.33 + 2.5 = 4.83

Now, substitute these values back into the expression:

9 - 3(5) / 1 x 4.83 / 2 x 7 / 1

Simplify multiplication and division from left to right:

9 - 15 / 1 x 4.83 / 2 x 7 / 1
9 - 15 x 4.83 / 2 x 7 / 1
9 - 72.45 / 2 x 7 / 1
9 - 36.225 x 7 / 1
9 - 253.575 / 1
9 - 253.575
-244.575

Therefore, the final answer is -244.575.