Question

23,5-(2,3a+ 1,2a)=19,3

Answer 1

23,5-(2,3а+1,2а)=19,3
23,5-3,5а=19,3
3,5а=23,5-19,3
3,5а=4,2
а=4,2/3,5
а=1,2

Answer 2

To solve for 'a' in the equation 23.5 - (2.3a + 1.2a) = 19.3, you'll need to simplify and isolate 'a.' Here are the steps to do that:

1. Combine like terms within the parentheses: 23.5 - (2.3a + 1.2a) = 19.3 23.5 - (3.5a) = 19.3

2. Now, isolate the term with 'a' on one side of the equation by moving the constant terms to the other side: 23.5 - 19.3 = 3.5a

3. Subtract 19.3 from 23.5: 4.2 = 3.5a

4. Finally, divide both sides by 3.5 to solve for 'a': 4.2 / 3.5 = a a ≈ 1.2

So, the solution for 'a' is approximately 1.2.