Question

Помогите Пожалуйста!!! Надо упростить выражение: 5\9*(3.6a-3 целых 3\5b)-3,5(4\7a-0,2b)

Answer 1

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Answer 2

Simplifying the Expression

To simplify the given expression, we can follow the order of operations (PEMDAS: Parentheses, Exponents, Multiplication and Division, Addition and Subtraction).

First, let's simplify the expression step by step.

1. Simplify within the parentheses: - 5/9*(3.6a - 3 + 3/5b) - 3.5(4/7a - 0.2b)

2. Apply the distributive property: - 5/9 * 3.6a - 5/9 * 3 + 5/9 * 3/5b - 3.5 * 4/7a + 3.5 * 0.2b

3. Perform the multiplications: - (20/9)a - 5/3 + 1/3b - 14/7a + 0.7b

4. Combine like terms: - (20/9 - 14/7)a + (1/3 + 0.7)b - 5/3

5. Further simplification: - (20/9 - 2)a + (10/10 + 7/10)b - 5/3 - (20/9 - 2)a + (17/10)b - 5/3

Final Simplified Expression

The simplified expression is (20/9 - 2)a + (17/10)b - 5/3.