Respuesta :
The value of a in the equation given is :
- a = r - d - c
Given the equation :
- a + c = r - d
- We need to isolate a in the equation :
- Firstly, we subtract c from both sides of the equation
- a + c - c = r - d - c
- THEN, we have ;
- a = r - d - c
Since, we already have a isolated at one side of the equation, then we conclude that a = r - d - c
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