Question

5(1,5a-4)-5а=51 Нужно сократить И решить не сокращая

Answer 1

7.5а-20-5а=51
2.5а=71
а=28.4

Answer 2

6.5a-20-5a=51
1.5a-20=51
1.5a=51+20
1.5a=71

Answer 3

Solving the Equation Step by Step

To solve the equation 5(1.5a - 4) - 5a = 51 without simplifying, we can follow these steps:

1. Distribute the 5 to the terms inside the parentheses: - 5 * 1.5a = 7.5a - 5 * 4 = 20

2. Substitute the results back into the equation: - 7.5a - 20 - 5a = 51

3. Combine like terms: - (7.5a - 5a) - 20 = 51 - 2.5a - 20 = 51

4. Add 20 to both sides of the equation: - 2.5a = 51 + 20 - 2.5a = 71

5. Divide both sides by 2.5 to solve for a: - a = 71 / 2.5 - a = 28.4

So, the solution to the equation 5(1.5a - 4) - 5a = 51 without simplifying is a = 28.4.