Respuesta :

Answer:

A= -3

Step-by-step explanation:

The parenthesis means multiplication with the number before it, it is a negative blank meaning you just switch the signs. 3-a becomes a-3. then you add 2 into it, making the equation A-1=-4. If you add 1 to both sides you get A=-3 To check the answer plug A back in. 2-(3-(-3))=-4    The negatives cancel each other out, making the equation 2-(6)=-4 or 2-6=-4 which is correct.

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